WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

B43L　ARTICLES FOR WRITING OR DRAWING UPON; {WRITING OR DRAWING AIDS;} ACCESSORIES FOR WRITING OR DRAWING (workshop equipment for marking-out work B25H 7/00; teaching hand-writing or drawing G09B 11/00)

B43L 1/00 Repeatedly-usable boards or tablets for writing or drawing (drawing-boards B43L 5/00)

B43L 1/002 ・{chemical details}

B43L 1/004 ・{with illuminating devices}

B43L 1/006 ・・{with luminescent substances}

B43L 1/008 ・{with magnetic action}

B43L 1/02 ・Slates

B43L 1/04 ・Blackboards ({wall mounting or suspension arrangements for blackboards or the like A47B 97/001}; easels or stands for blackboards A47B 97/04)

B43L 1/045 ・・{with magnetic action}

B43L 1/06 ・・rigid

B43L 1/08 ・・flexible

B43L 1/10 ・・Writing surfaces thereof

B43L 1/12 ・having transluscent writing surfaces producing visual impressions by co-operation with backing members {(B43L 1/008 takes precedence)}

B43L 1/123 ・・{Flexible writing surface or backing}

B43L 1/126 ・・・{withinterposed adhesive substances}

B43L 3/00 Writing or drawing underlays, e.g. blotting pads (blotters B43L 17/00; {supports for note pads: B42D 5/005})

B43L 3/001 ・{with illuminating devices}

B43L 3/002 ・・{with luminescent substances}

B43L 3/004 ・{without blotting means}

B43L 3/005 ・{provided with a casing}

B43L 3/007 ・{with rain protection means}

B43L 3/008 ・{with supporting means (bracelets with means for attaching a writing instrument or a memo pad A44C 5/0046; for attachment to shopping trolleys B62B 3/1428)}

B43L 5/00 Drawing boards (drawing desks or tables A47B 27/00, A47B 85/02; stands for drawing-boards A47B 97/04)

B43L 5/002 ・{with pivoting drawing surface}

B43L 5/005 ・{with magnetic action}

B43L 5/007 ・{drawing copying devices using a transparency}

B43L 5/02 ・having means for clamping sheets of paper thereto (drawing-pins B43M 15/00)

B43L 5/022 ・・{with magnets}

B43L 5/025 ・・{with paper rolls}

B43L 5/027 ・・{with suction devices}

B43L 7/00 Straightedges (guides; curve rulers or templets B43L 13/20; straightedges characterised by the provision of indicia or the like for measuring, e.g. rulers or tapes with measuring scales or marks for direc reading, G01B)

B43L 7/002 ・{for drawing boards and tables}

B43L 7/005 ・{combined with other drawing aids}

B43L 7/007 ・{with holding means}

B43L 7/02 ・T-squares {and other similar squares}

B43L 7/023 ・・{with magnets}

B43L 7/027 ・Plural non-adjustable straightedges fixed at right angles (B43L 7/02 takes precedence)

B43L 7/0275 ・・{Triangles}

B43L 7/033 ・Plural non-adjustable straightedges forming non-right angles

B43L 7/04 ・with rollers (with interconnected rollers B43L 13/02)

B43L 7/08 ・with arrangements for attaching additional drawing equipment e.g. for hatching, dotting

B43L 7/10 ・Plural straightedges relatively movable

B43L 7/12 ・・Square and pivoted straightedges

B43L 7/125 ・・・{Comprising at least two straightedges remaining parallel}

B43L 7/14 ・・Square and sliding straight edges

B43L 9/00 Circular curve-drawing or like instruments (curve rulers or templets B43L 13/00)

B43L 9/002 ・{with perforated or marked discs}

B43L 9/005 ・{with rollers or carriages}

B43L 9/007 ・{with perforated or marked rulers}

B43L 9/02 ・Compasses (proportional compasses B43L 9/08; {Compasses for drawing ellipses B43L 11/041;} Compasses for drawing spirals B43L 11/06)

B43L 9/025 ・・{Compasses with parallel legs}

B43L 9/04 ・・Beam compasses

B43L 9/045 ・・・{Tape compasses}

B43L 9/06 ・・with legs formed by flat springs

B43L 9/08 ・Proportional compasses or dividers

B43L 9/10 ・・with arrangements for drawing polygons

B43L 9/12 ・Dividers (proportional dividers B43L 9/08)

B43L 9/14 ・with changeable leg-ends for conversion into compasses, dividers, or callipers (B43L 9/24 takes precedence)

B43L 9/16 ・Features common to compasses, dividers, and callipers

B43L 9/18 ・・Legs with toggle joints

B43L 9/20 ・・Pivots

B43L 9/22 ・・Leg-angle adjusting-means separate from pivots

B43L 9/24 ・・Means for mounting points or writing appliances on legs

B43L 9/245 ・・・{for mounting centering elements}

B43L 11/00 Non-circular-curve-drawing instruments (curve rulers or templets B43L 13/20)

B43L 11/005 ・{pendulum-actuated}

B43L 11/02 ・for drawing conic sections

B43L 11/04 ・・for drawing ellipses

B43L 11/041 ・・・{by means of a compass}

B43L 11/043 ・・・{with stencils}

B43L 11/045 ・・・with cords or like flexible elements

B43L 11/05 ・・・with gears

B43L 11/055 ・・・with guides

B43L 11/06 ・for drawing spirals

B43L 11/08 ・for drawing involutes

B43L 12/00 Means to prevent slippage

B43L 12/02 ・magnetic {magnetic holding means for T-squares: B43L 7/023}

B43L 13/00 Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for (stencils for surface decoration B44D)

B43L 13/001 ・{Mathematical drawing instruments}

B43L 13/002 ・・{Angle intersecting devices}

B43L 13/004 ・{Manual lettering devices}

B43L 13/005 ・{Portable combined drawing-aids including boards}

B43L 13/007 ・{Contour tracing devices}

B43L 13/008 ・{Circle transformers}

B43L 13/02 ・Draughting machines or drawing devices for keeping parallelism (T-squares B43L 7/02)

B43L 13/022 ・・{automatic (apparatus for recording measured values G01D; Control systems for drawing machines G06K 15/22, G06F 3/13)}

B43L 13/024 ・・・{Drawing heads therefor}

B43L 13/026 ・・・{for writing characters or symbols (manual lettering devices B43L 13/004)}

B43L 13/028 ・・{Hand held or associated with the writing instrument}

B43L 13/04 ・・Guides for rulers

B43L 13/041 ・・・{with toothed racks}

B43L 13/043 ・・・{with squares}

B43L 13/045 ・・・{with carriages}

B43L 13/046 ・・・{with cables}

B43L 13/048 ・・・{with T-squares}

B43L 13/06 ・・・with pivoted guide rods

B43L 13/08 ・・Protractor heads

B43L 13/10 ・Pantographic instruments for copying, enlarging, or diminishing (arrangements for copying in machine tools B23Q)

B43L 13/12 ・・Multiple writing devices

B43L 13/14 ・Devices for drawing in perspective

B43L 13/141 ・・{Two-dimensional devices}

B43L 13/142 ・・・{T-squares (T-squares in general B43L 7/02)}

B43L 13/143 ・・・{mounted on parallel-motion drawing appliances (parallel devices in general B43L 13/02)}

B43L 13/144 ・・・{including protractors}

B43L 13/145 ・・・{Rulers (rulers in general B43L 7/00)}

B43L 13/146 ・・・{Squares (squares in general B43L 7/02)}

B43L 13/147 ・・{Three-dimensional devices}

B43L 13/148 ・・{using copying or multiple drawing arrangements}

B43L 13/149 ・・{including grids}

B43L 13/16 ・・free-hand

B43L 13/18 ・・・having optical or projecting equipment (optical systems or apparatus G02B; projectors G03B)

B43L 13/20 ・Curve rulers or templets

B43L 13/201 ・・{Stencils for drawing figures, objects}

B43L 13/203 ・・・{human, animal, or vegetal figures}

B43L 13/205 ・・・{geometrical figures}

B43L 13/206 ・・・{material objects}

B43L 13/208 ・・・{letters, numbers, symbols (lettering devices B43L 13/004)}

B43L 13/22 ・・Adjustable curve rulers

B43L 13/24 ・Devices for generating stepwise movements of drawing equipment, e.g. for hatching

B43L 15/00 Supports for attachment to hands or arms for facilitating writing or drawing

B43L 17/00 Blotters (blotting pads B43L 3/00; combined with writing implements B43K 29/04; making blotting paper D21F 11/14)

B43L 17/02 ・for blotting-paper sheets

B43L 17/04 ・・hand held

B43L 17/06 ・for reeled blotting-paper

B43L 17/08 ・・Roller blotters

B43L 17/10 ・using blotting material other than paper

B43L 19/00 Erasers, rubbers, or erasing devices; Holders therefor (rubbers or erasing knives combined with writing implements B43K 29/02, B43K 29/18)

B43L 19/0006 ・{motor-driven}

B43L 19/0012 ・・{Mechanical motors, e.g. springs, spindles}

B43L 19/0018 ・{with fluids}

B43L 19/0025 ・{Eraser or rubber material, e.g. comprising hard particles}

B43L 19/0031 ・・{comprising magnetic particles therein}

B43L 19/0037 ・{Eraser cleaners}

B43L 19/0043 ・{Erasing by electronic or electrolytic means}

B43L 19/005 ・{Finger mounted erasers}

B43L 19/0056 ・{Holders for erasers}

B43L 19/0062 ・・{Magnetic holders}

B43L 19/0068 ・・{Hand-held holders}

B43L 19/0075 ・・・{of the pencil type}

B43L 19/0081 ・・・・{of the mechanical pencil type}

B43L 19/0087 ・{Assembling, repairing or finishing erasers}

B43L 19/0093 ・{Eraser shields}

B43L 19/02 ・Erasing knives (knives in general B26B)

B43L 19/04 ・Fibrous erasers

B43L 21/00 Blackboard or slate cleaning devices

B43L 21/02 ・with means for absorbing the chalk dust

B43L 21/04 ・Wiper holders

B43L 23/00 Sharpeners for pencils or leads (grinding or cutting tools in general B24; B26; combined with writing implements B43K 29/06)

B43L 23/002 ・{with continuous conveying means for the pencil}

B43L 23/004 ・{with radial cutting blades}

B43L 23/006 ・{with rasping surfaces}

B43L 23/008 ・{with rotating cutting bodies}

B43L 23/02 ・with gearing

B43L 23/04 ・・with cranked handles

B43L 23/06 ・in which the pencils or leads are sharpened by only axial movement against cutting blades

B43L 23/08 ・in which the pencils or leads are sharpened mainly by rotational movement against cutting blades (B43L 23/02 takes precedence)

B43L 23/085 ・・{one of the blades being used for shaping the writing point}

B43L 25/00 Ink receptacles (liquid receptacles in general B65D, e.g. B65D 1/00)

B43L 25/001 ・{with adjustable depth of dipping}

B43L 25/002 ・{Caps or closure means for ink receptacles (closure means for containers in general B65D)}

B43L 25/004 ・{Ink receptacles with solid ink; Non reversable receptacles}

B43L 25/005 ・{Ink receptacles incorporated in a table or a bench}

B43L 25/007 ・{Portable ink receptacles; Filling devices for receptacles}

B43L 25/008 ・{with wick feed}

B43L 25/02 ・with separate dipping-cups

B43L 25/04 ・・supplied by pressure arrangements

B43L 25/06 ・・supplied by tilting the receptacles

B43L 25/08 ・with arrangements for dissolving ink powder

B43L 25/10 ・with means for holding objects

B43L 25/12 ・with pen-wiping means

B43L 27/00 Ink stands

B43L 27/02 ・having means for securing objects thereon

B43L 27/04 ・securable to other objects