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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2601/00
Problem to be solved or advantage achieved
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B65H2601/20
Avoiding or preventing undesirable effects
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B65H2601/253
to particular parts of material
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