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Alarm display
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Patent number D297128
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Issue date Aug 9, 1988
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ADT, Inc.
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John K. Guscott
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D10 - Measuring, testing, or signalling instruments
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Intrusion detector cover panel
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Patent number D275463
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Issue date Sep 11, 1984
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American District Telegraph Company
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Kenneth E. Beeson
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D10 - Measuring, testing, or signalling instruments
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Intrusion detector cover panel
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Patent number D275462
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Issue date Sep 11, 1984
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American District Telegraph Company
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Kenneth E. Beeson
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D10 - Measuring, testing, or signalling instruments
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Control panel
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Patent number D272530
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Issue date Feb 7, 1984
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American District Telegraph Company
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H. Patrick Thornton
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D13 - Equipment for production, distribution, or transformation of energy
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Control panel
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Patent number D272531
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Issue date Feb 7, 1984
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American District Telegraph Company
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H. Patrick Thornton
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D13 - Equipment for production, distribution, or transformation of energy
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Control panel
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Patent number D272434
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Issue date Jan 31, 1984
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American District Telegraph Company
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H. Patrick Thornton
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D13 - Equipment for production, distribution, or transformation of energy
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Control panel
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Patent number D272435
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Issue date Jan 31, 1984
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American District Telegraph Company
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H. Patrick Thornton
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D13 - Equipment for production, distribution, or transformation of energy
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Ultrasonic intrusion detector
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Patent number D266996
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Issue date Nov 23, 1982
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American District Telegraph Company
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Kenneth E. Beeson
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D10 - Measuring, testing, or signalling instruments
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