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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7/00
Other common features of elevators
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B66B7/04
Riding means, e.g.; Shoes, Rollers,; between car and guiding means, e.g. rails, ropes
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