Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B66
HOISTING; LIFTING; HAULING
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B66D
CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
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3/00
Portable or mobile lifting or hauling appliances
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B66D3/12
Chain or like hand-operated tackles with or without power transmission gearing between operating member and lifting rope, chain or cable
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B66D3/16
operated by an endless chain passing over a pulley or a sprocket
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