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Apparatus for threading holes
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Patent number 4,449,868
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Issue date May 22, 1984
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Agfa-Gevaert Aktiengesellschaft
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Karl Steinsberger
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Grinding arbor
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Patent number 4,110,936
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Issue date Sep 5, 1978
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Bela Augusztin
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3431800
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Patent number 3,431,800
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Issue date Mar 11, 1969
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3188897
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Patent number 3,188,897
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Issue date Jun 15, 1965
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3026549
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Patent number 3,026,549
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Issue date Mar 27, 1962
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2771806
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Patent number 2,771,806
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Issue date Nov 27, 1956
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2756623
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Patent number 2,756,623
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Issue date Jul 31, 1956
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2735327
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Patent number 2,735,327
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Issue date Feb 21, 1956
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2502078
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Patent number 2,502,078
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Issue date Mar 28, 1950
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2419818
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Patent number 2,419,818
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Issue date Apr 29, 1947
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2340029
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Patent number 2,340,029
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Issue date Jan 25, 1944
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2321530
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Patent number 2,321,530
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Issue date Jun 8, 1943
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2265265
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Patent number 2,265,265
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Issue date Dec 9, 1941
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1902657
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Patent number 1,902,657
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Issue date Mar 21, 1933
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1775737
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Patent number 1,775,737
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Issue date Sep 16, 1930
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1749598
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Patent number 1,749,598
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Issue date Mar 4, 1930
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1582669
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Patent number 1,582,669
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Issue date Apr 27, 1926
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1497109
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Patent number 1,497,109
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Issue date Jun 10, 1924
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR