Key in combination with a timer and emitter
Key leverage extending apparatus and method
Key locating attachment for controlling the depth of penetration
Key lock apparatus
Key lock cylinder for possibly contaminated environments
Key lock with a flying sidebar
Key lock with key isolation
Key lock with removable plug
Key lock with transfer tumblers and master keying
Key locking indicator
Key made of magnetic material
Key management device, and methods of constructing and utilizing
Key mechanism
Key operable locking mechanism
Key operable safety switch
Key operated lock
Key operated lock
Key operated locking mechanism
Key operated rotary plug and cylinder lock
Key operated rotary switch for disabling an automobile air bag s