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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B66B11/008
with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
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B66B11/0095
where multiple cars drive in the same hoist way
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