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Primer insulating base
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Patent number 4,614,494
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Issue date Sep 30, 1986
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GTE Products Corporation
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John W. Shaffer
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F21 - LIGHTING
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Photoflash unit with secured insulator
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Patent number 4,152,751
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Issue date May 1, 1979
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GTE Sylvania Incorporated
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Ronald E. Sindlinger
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Photoflash lamp
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Patent number 4,105,392
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Issue date Aug 8, 1978
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GTE Sylvania Incorporated
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Ronald E. Sindlinger
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F21 - LIGHTING
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Test photoflash lamp
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Patent number 3,955,912
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Issue date May 11, 1976
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GTE Sylvania Incorporated
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Donald E. Armstrong
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F21 - LIGHTING
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Photoflash lamp
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Patent number 3,947,225
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Issue date Mar 30, 1976
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GTE Sylvania Incorporated
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Emery G. Audesse
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F21 - LIGHTING