Double cylinder lock with key retention

Double cylinder pin tumbler lock

Double cylinder safety lock

Double hook-bolt mortise lock

Double safety latch for trailer doors

Double sided tumbler cylinder for a security lock

Double-acting locking device for joint control

Doubly lockable belt locking device

Drill resistant lock

Drill resistant lock cylinder

Drive apparatus and portable power source for computerized combi

Drive apparatus and portable power source for computerized combi

Drive apparatus and portable power source for computerized...

Drive apparatus for a lock with lock cylinder

Drive device for locking and unlocking a lock with...

Drive mechanism for key operated electronic lock

Drivers door lock for vehicular antitheft lock system

Drop-bolt door lock assembly

Dual control mode lock

Dual control mode lock system