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Electrochemical marking
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Patent number 4,410,901
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Issue date Oct 18, 1983
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Electromark, Div. of Mohawk International
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Philip C. Szeliga
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Flow control apparatus
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Patent number 4,294,277
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Issue date Oct 13, 1981
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Foam Controls, Inc.
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Philip C. Szeliga
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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System for applying foam insulation
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Patent number 4,204,612
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Issue date May 27, 1980
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Foam Controls Inc.
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Joseph F. Schrader
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL