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Double ended drill stop
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Patent number 4,168,131
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Issue date Sep 18, 1979
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The Boeing Company
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Horace E. Hill
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Lubricant applicator
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Patent number 4,147,232
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Issue date Apr 3, 1979
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Boeing Commercial Airplane Company
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Frank L. Gaunt
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Double ended drill stop
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Patent number 4,123,193
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Issue date Oct 31, 1978
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The Boeing Company
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Horace E. Hill
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Drill stop
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Patent number 4,019,827
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Issue date Apr 26, 1977
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The Boeing Company
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Merrill Andrew Christianson
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR