Concealed shackle padlock

Connection lock executing locking operation without keys

Contractible handcuff

Controllably extendible restraint interconnections

Coupler latch lock and method of use

Coupling lock

Cover for padlock

Cover for padlocks

Cross bar security device for container door stanchions

Cuff lock

Cuff lock and push-button locking mechanism

Cylinder-lock mechanism and key means therefore

Cylindrical lock

Detachable security assembly

Device and method for determining parameters

Device comprising a locking bar

Device for preventing free rotation of a wheel of a stationary v

Device for preventing unauthorized use of a cassette tape deck

Device for protecting a padlock

Device-port locking covers