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Circuit board structure
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Patent number 5,205,753
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Issue date Apr 27, 1993
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NVision, Inc.
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David J. Butterfield
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H01 - BASIC ELECTRIC ELEMENTS
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Monolithic switch
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Patent number 4,663,598
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Issue date May 5, 1987
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The Grass Valley Group
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Birney D. Dayton
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H03 - BASIC ELECTRONIC CIRCUITRY
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Video signal format
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Patent number 4,654,696
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Issue date Mar 31, 1987
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Grass Valley Group, Inc.
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Birney D. Dayton
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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