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Alarm repeater
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Patent number D265299
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Issue date Jul 6, 1982
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Baker Industries, Inc.
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Michael G. Jaretsky
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D10 - Measuring, testing, or signalling instruments
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Window alarm
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Patent number D264564
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Issue date May 25, 1982
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Baker Industries, Inc.
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Michael G. Jaretsky
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D10 - Measuring, testing, or signalling instruments
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Door alarm
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Patent number D264194
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Issue date May 4, 1982
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Baker Industries, Inc.
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Michael G. Jaretsky
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D10 - Measuring, testing, or signalling instruments