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Alarm system
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Patent number 8,872,649
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Issue date Oct 28, 2014
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Novar GmbH
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Tido Krippendorf
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Hazard indicator with LED
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Patent number 8,253,583
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Issue date Aug 28, 2012
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Novar GmbH
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Tido Krippendorf
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Fire detector device
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Patent number 7,298,479
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Issue date Nov 20, 2007
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Novar GmbH
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Heiner Politze
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G08 - SIGNALLING
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Smoke detector
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Patent number D485200
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Issue date Jan 13, 2004
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esser-effeff alarm GmbH
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Oliver Berthold
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D10 - Measuring, testing, or signalling instruments
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Scattered light fire detector
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Patent number 6,218,950
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Issue date Apr 17, 2001
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Caradon Esser GmbH
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Heiner Politze
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G06 - COMPUTING CALCULATING COUNTING
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Fire detector
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Patent number 5,351,034
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Issue date Sep 27, 1994
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Esser Sicherheitstechnik GmbH
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Horst Berger
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G08 - SIGNALLING