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

Dual electronic lock for human passage door

Dual function lock/latch device

Dual key locks having improved precision and versatility

Dual key locks with multi-function tumblers