Key for operating both motor vehicle and building locks

Details Key for operating both motor vehicle and building locks Key for operating both motor vehicle and building locks

1996-09-09

1998-12-01

Zimmerman, Brian

Communications: electrical

Continuously variable indicating

With meter reading

34082534, 34082569, 34082572, 235382, 70256, 70279, 307 102, 180287, G08C 1700

Patent

active

058444955

ABSTRACT:
A key operable with both motor vehicles and buildings includes a mechanically coded part and a transponder for exchanging an identification code that includes a fixed code and a second code part. The fixed code can be used within the framework of a door-locking system for the building for identifying the key user as the one authorized to enter the building. Both the fixed code and the second code part are used to operate a motor vehicle lock.

REFERENCES:
patent: 4788542 (1988-11-01), Tanabe
patent: 5109221 (1992-04-01), Lambropoulos et al.
patent: 5311757 (1994-05-01), Spahn
patent: 5442341 (1995-08-01), Lambropoulos
patent: 5467082 (1995-11-01), Sanderson
patent: 5477214 (1995-12-01), Bartel
patent: 5534845 (1996-07-01), Issa et al.
patent: 5561420 (1996-10-01), Kleefeldt et al.
patent: 5648764 (1997-07-01), Nose et al.
patent: 5650774 (1997-07-01), Drori

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