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Patents

Referenced by

Citing PatentFiling dateIssue dateOriginal AssigneeTitle
US40796053 May 197621 Mar 1978Schlage Lock CompanyOptical key reader for door locks
US414921227 Dec 197710 Apr 1979Huwil-Werke GmbH, Mobelschloss- und BeschlagfabrikenElectrically encoded, electrically controlled push-button combination lock
US41776577 Nov 197711 Dec 1979Kadex, Inc.Electronic lock system
US422208827 Sep 19789 Sep 1980Electronic lock
US435583025 Feb 198026 Oct 1982CNI IncorporatedElectrical locking mechanism
US441114416 Mar 198125 Oct 1983Kadex, Inc.Electronic lock system
US442559716 Feb 198210 Jan 1984Electronic locking method and apparatus
US445558829 Apr 198219 Jun 1984Nissan Motor Company, Limited
Kokusan Kinzoku Kogyo Co., Ltd.
Electronical unlocking method and system
US446334929 Sep 198231 Jul 1984Nissan Motor Company, Ltd.Electronic lock system with audible entry monitor
US447780629 Sep 198216 Oct 1984Nissan Motor Company, Limited
Kokusan Kinzoku Kogyo Co. Ltd.
Mischief preventive electronic lock device
US448680629 Apr 19824 Dec 1984Nissan Motor Company, Limited
Kokusan Kinzoku Kogyo Co., Ltd.
Electronic door locking system for an automotive vehicle
US449554027 Dec 198222 Jan 1985Presto Lock, Inc.Electronic lock
US453419421 Oct 198313 Aug 1985Kadex, IncorporatedElectronic lock system
US463829224 Aug 198220 Jan 1987Nissan Motor Company, Limited
Kokusan Kinzoku Kogyo
Theft prevention system in an automotive keyless entry system with automatic door locking
US467222420 Mar 19859 Jun 1987Composite automatic control system for vehicle engine with theft prevention circuit
US479426819 Jun 198727 Dec 1988Nissan Motor Company, LimitedAutomotive keyless entry system incorporating portable radio self-identifying code signal transmitter
US485791423 Jul 198715 Aug 1989Access-control apparatus
US487353029 Sep 198610 Oct 1989Nissan Motor Co., Ltd.Antenna device in automotive keyless entry system
US497395821 Feb 198627 Nov 1990Nissan Motor Company, LimitedKeyless entry system for automotive devices antenna device allowing low power radio signal communication
US500669719 Jan 19909 Apr 1991Convoy Security CompanySequential seal
US50217769 Aug 19894 Jun 1991Yale Security Inc.Electronic combination of lock with changeable entry codes, lock-out and programming code
US50637649 Feb 198912 Nov 1991Convoy Security CompanyRoll-up door lock
US511119926 Jun 19905 May 1992Nissan Motor Company, LimitedPocket-portable radio code signal transmitter for automotive keyless entry system
US534726728 Sep 199213 Sep 1994Stanley Home AutomationElectronic lock reset system and method
US718040024 Mar 200420 Feb 2007Fuji Jukogyo Kabushi KaishaKey-less entry system and the method thereof

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