Pin tumbler locking mechanism

Pin tumbler locks and keys therefor

Pin tumbler locks and their assembly

Pin tumblers and corresponding keys for cylinder locks

Pin-tumbler lock with retained key and method of operation there

Pin-tumbler-type lock having antipick security action

Pin-type lock with axial split cylinder and/or plug

Piston-type locks

Pivoting tumbler system

Plastic lock

Plate tumbler for a cylinder lock mechanism

Plate tumbler-type cylinder lock mechanism

Plug for a key operated lock

Plug-type lock with increased stroke

Plugless pin tumbler cylinder

Pocket lock pick

Pop-up, precision lock-cylinder that reveals at once, with...

Portable pick-proof deadbolt attachment

Portable steering column locking apparatus

Portable, removable, door knob mounted, door locking apparatus