E - Fixed Constructions – 05 – F
Patent
E - Fixed Constructions
05
F
342/2.2
E05F 15/20 (2006.01) E05F 15/10 (2006.01) G07C 9/00 (2006.01)
Patent
CA 1213021
ABSTRACT OF THE DISCLOSURE Apparatus and method for door operation remote control. A radio transmitter transmits a door operation command signal for a predetermined time when the operator operates a switch, irrespective of a turn-on time of the switch. Upon receipt of the door operation command signal from the radio transmitter, a door operation control signal is generated to effect the operation of a door.
397572
Hitachi Ltd.
Kirby Eades Gale Baker
LandOfFree
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