Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
Load children
B66
HOISTING; LIFTING; HAULING
Load children
B66B
ELEVATORS; ESCALATORS OR MOVING WALKWAYS
Load children
13/00
Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
Load children Filter patents View analytics View as hierarchy
B66B13/24
Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers
Load children Filter patents View analytics View as hierarchy