Abnormal use indicator for door lock

Access identification apparatus

Access-limiting apparatus

Accessories for a modular removable core cylinder assembly

Actuating device and key

Actuating device for a lock, especially in a motor vehicle

Adaptable radial tumbler lock

Adjunct actuator for vehicle door lock

Adjustable cylinder lock

Adjustable device for an auxiliary lock

Adjustable key-type spring pin lock cylinder

Adjustable lock

Alarm capability for pin tumbler locks

Alarm switch mechanism for an axial split-pin tumbler-type lock

Alarm switch mechanism for axial pin tumbler locks

All purpose type deadbolt lock

Ambidextrous vertical inverted handed cam lock

Anti-attack interlocks for a combination lock mechanism

Anti-jam locking mechanism for electronic security system

Anti-manipulation device for permutation locks