1
Kemal Aydin: Retrofittable electronic and mechanical door lock system. David Sokol, Kemal Aydin, Eliot S Gerber, August 1, 1995: US05437174 (57 worldwide citation)

A lock system adapted to be used with both conventional mortise and cylinder locks includes an electronic socket to removably receive a button-like metal casing having an integrated circuit therein. The socket transmits code to a microprocessor based circuit which control a rotary two-directional mo ...


2
Kemal Aydin: Electronic lock system. Kadex Incorporated, Reising Ethington Barnard Perry & Milton, August 13, 1985: US04534194 (53 worldwide citation)

An electronic lock system senses codes on a key by means of opto-electronic, magnetic or other electrical means and compares the key code to a code stored internally in a memory. When the key code is equal to its respective stored code the lock activates an electrical clutch operated bolt, and may a ...


3
Kemal Aydin: Electronic lock system. Kadex, Alfred E Miller, December 11, 1979: US04177657 (45 worldwide citation)

An electronic lock system senses codes on a key by means of opto-electronic, magnetic or other electrical means and compares the key code to a code stored internally in a memory. When the key code is equal to its respective stored code the lock activates an electrical clutch operated bolt, and may a ...


4
Kemal Aydin: Electronic lock system. Kadex, Reising Ethington Barnard Perry & Milton, October 25, 1983: US04411144 (29 worldwide citation)

An electronic lock system senses codes on a key by means of opto-electronic, magnetic or other electrical means and compares the key code to a code stored internally in a memory. When the key code is equal to its respective stored code the lock activates an electrical clutch operated bolt, and may a ...