E - Fixed Constructions – 05 – B
Patent
E - Fixed Constructions
05
B
E05B 47/00 (2006.01)
Patent
CA 2357097
The present invention relates to a door unlocking system may be used as an add- on for a door lock; the door lock being mounted in a door comprising a door frame and a door latching bolt. The system allows the door to be unlocked and opened using only one hand. The system also allows for the door to be opened with a key, through a remote signal, and to be unlocked until it is relocked.
Lavergne Jean-Guy
Na
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