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Referenced by

Citing PatentFiling dateIssue dateOriginal AssigneeTitle
US397846622 Sep 197531 Aug 1976Alarm system including remote signalling means
US399789011 Jun 197414 Dec 1976Alarm system with supervisory system to detect severing or bridging of detection switches
US40645089 Aug 197620 Dec 1977Theodore Simon
Barry Schweiger
Alarm system including remote signalling means
US422776630 Jan 197914 Oct 1980Security method and system
US427012110 Apr 198026 May 1981Circuitry for burglar alarm annunciator
US44357007 Sep 19826 Mar 1984Event detection and indication system
US462519814 Aug 198425 Nov 1986Self Diagnostic Security Devices, Inc.Alarm system diagnostic apparatus
US464606711 Jul 198324 Feb 1987Maschinenfabrik Hellmut Geiger GmbH & Co. KG.Security bar rack
US481680326 Feb 198828 Mar 1989Tamper alarm for semi trailer
US484973417 Aug 198718 Jul 1989Self Diagnostic Security Devices, Inc.Self-diagnostic circuit for alarm-systems
US545373122 Nov 199326 Sep 1995Chrysler CorporationAutomotive switch lighted with integral diodes
US640026620 Apr 20004 Jun 2002Wabash Technology CorporationDoor sensor for a trailer
US658704120 Apr 20001 Jul 2003Wabash Technology CorporationSemi-tractor fifth wheel sensor and rail car stanchion sensor for a trailer
US74175421 Feb 200626 Aug 2008Stein H. BruchAircraft security alarm system
US791601918 Oct 200729 Mar 2011Commissariat A l'Energie Atomique, Etablissement Public A Caractere Industriel Et CommercialDevice for detecting the relative position of two elements via electric circuit section having mechanical function in at least one of the elements