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Apparatus for producing drill screws
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Patent number 4,138,754
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Issue date Feb 13, 1979
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Illinois Tool Works Inc.
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Martin A. Baer
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Method of producing drill screws
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Patent number 4,071,918
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Issue date Feb 7, 1978
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Illinois Tool Works Inc.
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Martin A. Baer
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Blowmolding machine
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Patent number 3,994,655
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Issue date Nov 30, 1976
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Illinois Tool Works Inc.
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Bryant Edwards
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL