WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

B27H　BENDING; COOPERAGE; WHEEL-MAKING

B27H 1/00 Bending wood stock, e.g. boards

B27H 3/00 Manufacture of constructional elements of tubes, coops, or barrels (assembly, e.g. coopering, B27H 5/00)

B27H 3/02 ・Manufacture of barrel staves

B27H 3/04 ・Manufacture of barrel heads or casings

B27H 5/00 Manufacture of tubes, coops, or barrels (from veneer strips or sheets B27D 1/00)

B27H 5/02 ・Building up with staves

B27H 5/04 ・・Forming staves into the final shape and assembling same

B27H 5/08 ・Finishing barrels, e.g. cutting grooves

B27H 5/10 ・・Trussing or hooping barrels

B27H 5/12 ・・Making bungs from wood; Drilling or reaming bung holes

B27H 7/00 Manufacture of wood-rimmed wheels, e.g. cart wheels, steering wheels {B23B 3/265, B23B 5/38, B23B 41/06 take precedence}