WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

G10C　PIANOS, HARPSICHORDS, SPINETS OR SIMILAR STRINGED MUSICAL INSTRUMENTS WITH ONE OR MORE KEYBOARD (non-musical aspects of toy pianos A63H 5/00; aspects of automatic actuation G10F; combinations of microphones, pick-ups or amplifiers with musical instruments G10H)

G10C 1/00 General design

G10C 1/02 ・of upright pianofortes

G10C 1/04 ・of grand pianofortes

G10C 1/06 ・of cembaloes, spinets, or similar stringed instruments {(keyboard-operated zithers G10D 3/085)}

G10C 3/00 Details or accessories

G10C 3/02 ・Cases

G10C 3/04 ・Frames; Bridges; Bars

G10C 3/06 ・Resonating means, e.g. resonant strings, soundboards; Fastenings of the resonating means

G10C 3/08 ・Arrangements of strings

G10C 3/10 ・Tuning pins or straining devices

G10C 3/103 ・・{the axis of the pins being parallel to the string}

G10C 3/106 ・・{the axis of the pins being perpendicular to the string}

G10C 3/12 ・Keyboards; Keys

G10C 3/125 ・・{Materials or treatment of materials for the manufacturing of keys}

G10C 3/14 ・・for actuation by the feet

G10C 3/16 ・Actions

G10C 3/161 ・・{specially adapted for upright pianos}

G10C 3/163 ・・・{the actions being mounted in a plane below the keyboard}

G10C 3/165 ・・{for plucking the strings, i.e. for instruments covered by group G10C 1/06(plucking mechanisms for keyboard-operated zithers G10D 3/085)}

G10C 3/166 ・・{for damping a string (G10C 3/161, G10C 3/168, G10C 3/20, G10C 3/22, G10C 3/26 take precedence)}

G10C 3/168 ・・{with a hanging jack, i.e. jack connected to hammer-butt or hammer-shank}

G10C 3/18 ・・Hammers

G10C 3/20 ・・involving the use of hydraulic, pneumatic, or electromagnetic means

G10C 3/22 ・・{specially adapted} for grand pianofortes

G10C 3/225 ・・・{the actions, in particular the hammers, being mounted above the strings, i.e. hammers hitting downwards}

G10C 3/24 ・・for reciprocating of tremolo {(G10C 3/161, G10C 3/168, G10C 3/20, G10C 3/22 take precedence)}

G10C 3/26 ・Pedals or pedal mechanisms for half-blow or similar sound modifying

G10C 3/28 ・Transposing devices

G10C 3/30 ・Couplers, e.g. for playing octaves

G10C 5/00 Combinations with other musical instruments, e.g. with bells or xylophones

G10C 5/005 ・{Switching the keyboard from piano playing to playing another instrument}

G10C 9/00 Methods or tools specially adapted for the manufacture or maintenance of musical instruments covered by this subclass