Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B66
HOISTING; LIFTING; HAULING
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B66B
ELEVATORS; ESCALATORS OR MOVING WALKWAYS
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11/00
Main component parts of lifts in, or associated with, buildings or other structures
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B66B11/04
Driving gear; ; Details thereof, e.g. seals
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B66B11/043
actuated by rotating motor; Details, e.g. ventilation
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B66B11/0446
with screw-nut or worm-screw gear
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