Back cover lock for a combination lock

Ball bearing cylinder plug and key retention

Bar-tumbler type safety lock

Bar-tumbler type safety lock

Barrel having tumbler plates for a cylindrical lock

Barrel lock assembly

Battery-powered door lock assembly and method

Bezel

Bezel lock, key and receiver assembly

Biased detent for door knob assembly

Bicycle lock

Bilateral key for cylinder lock

Binary coded key and latch-actuator

Biometric deadbolt lock assembly

Bit key lock

Blocking device for a cylinder lock

Blocking device for latch mechanism

Blocking device for latch mechanism

Blood identification means

Bolt assembly