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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9/00
Kinds or types of lifts in, or associated with, buildings or other structures
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B66B9/06
inclined, e.g. serving blast furnaces
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B66B9/08
associated with stairways, e.g. for transporting disabled persons
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