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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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20/00
Advancing webs
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B65H20/30
Arrangements for accumulating surplus web
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B65H20/32
by making loops
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B65H20/34
with rollers
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