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Wiring tester plug
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Patent number D381921
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Issue date Aug 5, 1997
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The Siemon Company
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John A. Siemon
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D10 - Measuring, testing, or signalling instruments
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Cable tester
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Patent number 5,598,342
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Issue date Jan 28, 1997
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The Siemon Company
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John A. Siemon
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G01 - MEASURING TESTING
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Shielded connector assembly
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Patent number 5,518,423
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Issue date May 21, 1996
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The Siemon Company
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Martin Green
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H01 - BASIC ELECTRIC ELEMENTS
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Wiring tester unit
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Patent number D368667
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Issue date Apr 9, 1996
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The Siemon Company
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John A. Siemon
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D10 - Measuring, testing, or signalling instruments