Key unit and switch body and door switch using the same
Key unlocking and retaining method and apparatus
Key using synthetic resin for grip portion
Key with identifying incorporated system
Key with light in handle
Key with lock status indication
Key with ornamental bow device
Key with removable head
Key with transverse slots and method of making same
Key-actuated barrel-type locks
Key-controlled door lock
Key-controlled door lock
Key-in knob door assembly with notched turn bar...
Key-in-knob cylinder replacement system
Key-in-lever type door lock used for handicapped people
Key-operated device for access control system
Key-operated handle knob assembly having high compressive...
Key-operated locks
Key-operated, exit alarm, switch cam assembly, and...
Keycard reader