Jack shaft door garage operator
Jack shaft garage door operator
Jack shaft garage door operator
Jack-shaft operator assembly having connecting plate secured...
Jail cell lock mechanism
Jail cell security systems
Jail door operating and locking mechanism
Jalousie
Jalousie burglar stop
Jam protection for a power-operated closing device
Jamb and threshold assembly with watertight seals
Jamb construction for entry doors
Jamb liner sash stop
Jamb liner weatherseal
Jamb protection system
Jamb seal
Joining of side-plates at a metal door
Jointed window lifter, especially for motor vehicles