Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
Load children
B66
HOISTING; LIFTING; HAULING
Load children
B66B
ELEVATORS; ESCALATORS OR MOVING WALKWAYS
Load children
5/00
Applications of checking, fault-correcting, or safety devices in elevators
Load children Filter patents View analytics View as hierarchy
B66B5/02
responsive to abnormal operating conditions
Load children Filter patents View analytics View as hierarchy