132728 ⎘
Locks or fastenings with special structural characteristics with arrangements independent of the locking mechanism for retaining the bolt or latch in the retracted position released automatically when the wing is closed Automatic deadlocking
Lock with emergency unlocking feature
#2Automatic locking-deadbolt assembly in a door
#3Automatically-extendible deadbolt latch assembly
#4Closing device with a strong deterrent compression spring
#5Security lock
#6Locking Device and Associated Methods
#7DOOR LOCK WITH AUTOMATIC LOCKING OF DEADBOLT
#8Doubledeadlock: A true combination door latch and deadbolt lock with optional automatic deadbolt locking when a door is latched
#9Multi-point-door-lock electric locking device
#10Arrangement for guiding the deadlocking of a latch bolt in a door lock
#11DOUBLEDEADLOCK™: A true combination door latch and deadbolt lock with optional automatic deadbolt locking when a door is latched
#12Lock with pivoting release
#13Mortise lock with automatic projection of dead bolt
#14Dead bolt lock system having multiple security features
#15Deadlock arrangement for locks
#16Automatic deadbolt mechanism for a mortise lock
#17Attack, ballistic and blast resistant self-locking door