Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B65
CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
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B65H
HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
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51/00
Forwarding filamentary material
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B65H51/02
Rotary devices, e.g. with helical forwarding surfaces
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B65H51/04
Rollers, pulleys, capstans, or intermeshing rotary elements
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B65H51/08
arranged to operate in groups or in co-operation with other elements
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