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Turbine type air motor
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Patent number 3,945,757
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Issue date Mar 23, 1976
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Onsrud Machine Works, Inc.
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Joseph R. Cummens
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Vacuum turbine for a drill
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Patent number 3,932,055
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Issue date Jan 13, 1976
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Lloyd P. Flatland
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3210088
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Patent number 3,210,088
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Issue date Oct 5, 1965
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3190278
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Patent number 3,190,278
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Issue date Jun 22, 1965
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B28 - WORKING CEMENT, CLAY, OR STONE
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3101014
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Patent number 3,101,014
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Issue date Aug 20, 1963
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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2780966
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Patent number 2,780,966
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Issue date Feb 12, 1957
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR