Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B66
HOISTING; LIFTING; HAULING
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B66C
CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
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13/00
Other constructional features or details
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B66C13/18
Control systems or devices
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B66C13/20
for non-electric drives
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