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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2404/00
Parts for transporting or guiding the handled material
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B65H2404/50
Surface of the elements in contact with the forwarded or guided material
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B65H2404/53
with particular mechanical, physical properties
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B65H2404/531
particular coefficient of friction
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B65H2404/5311
Surface with different coefficients of friction
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