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Multipoint sensing system
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Patent number 8,022,367
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Issue date Sep 20, 2011
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Liberty Hardware Mfg. Corp.
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John Gerard Finch
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G08 - SIGNALLING
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Monitoring system
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Patent number 4,567,471
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Issue date Jan 28, 1986
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Pittway Corporation
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Mustafa Acar
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G08 - SIGNALLING
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Annunciator control circuit
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Patent number 4,506,256
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Issue date Mar 19, 1985
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Honeywell Information Systems Inc.
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Luther L. Genuit
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G08 - SIGNALLING
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Signal selection circuit
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Patent number 4,358,755
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Issue date Nov 9, 1982
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Simmonds Precision Products, Inc.
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Cecil Franklin
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G08 - SIGNALLING
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Danger alarm system
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Patent number 4,286,117
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Issue date Aug 25, 1981
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Siemens Aktiengesellschaft
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Karlheinz Schreyer
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G08 - SIGNALLING
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Danger alarm system
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Patent number 4,254,411
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Issue date Mar 3, 1981
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Siemens Aktiengesellschaft
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Otto W. Moser
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G08 - SIGNALLING
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Danger alarm system
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Patent number 4,250,353
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Issue date Feb 10, 1981
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Siemens Aktiengesellschaft
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Karlheinz Schreyer
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G08 - SIGNALLING
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Central station alarm
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Patent number 4,228,424
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Issue date Oct 14, 1980
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Baker Protective Services, Incorporated
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Tom W. Le Nay
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G08 - SIGNALLING
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Danger alarm system
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Patent number 4,222,041
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Issue date Sep 9, 1980
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Siemens Aktiengesellschaft
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Romuald Von Tomkewitsch
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G08 - SIGNALLING
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Alarm system
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Patent number 4,162,488
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Issue date Jul 24, 1979
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Emergency Products Corporation
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Howard M. Silverman
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G08 - SIGNALLING
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Alarm system
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Patent number 4,144,528
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Issue date Mar 13, 1979
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CompAlarm Systems Co.
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Robert D. Johnson
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G08 - SIGNALLING
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Security alarm system
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Patent number 4,032,908
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Issue date Jun 28, 1977
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Automated Systems, Inc.
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Richard C. Rice
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G08 - SIGNALLING