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Drilling method and drilling machine
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Patent number 11,273,500
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Issue date Mar 15, 2022
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SUGINO MACHINE LIMITED
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Yoshiteru Kawamori
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Drilling method
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Patent number 7,637,702
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Issue date Dec 29, 2009
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Hitachi Via Mechanics, Ltd.
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Takao Furukawa
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3515017
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Patent number 3,515,017
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Issue date Jun 2, 1970
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3400615
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Issue date Sep 10, 1968
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3303727
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Patent number 3,303,727
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Issue date Feb 14, 1967
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3246544
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Patent number 3,246,544
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Issue date Apr 19, 1966
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3188892
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Patent number 3,188,892
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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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3167977
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Patent number 3,167,977
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Issue date Feb 2, 1965
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3089358
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Patent number 3,089,358
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Issue date May 14, 1963
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2974548
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Patent number 2,974,548
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Issue date Mar 14, 1961
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2956453
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Patent number 2,956,453
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Issue date Oct 18, 1960
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2955490
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Patent number 2,955,490
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Issue date Oct 11, 1960
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2955489
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Patent number 2,955,489
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Issue date Oct 11, 1960
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2953046
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Patent number 2,953,046
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Issue date Sep 20, 1960
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2945401
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Patent number 2,945,401
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Issue date Jul 19, 1960
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2757560
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Patent number 2,757,560
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Issue date Aug 7, 1956
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2697952
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Patent number 2,697,952
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Issue date Dec 28, 1954
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2242169
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Patent number 2,242,169
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Issue date May 13, 1941
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2165774
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Patent number 2,165,774
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Issue date Jul 11, 1939
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1911302
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Patent number 1,911,302
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Issue date May 30, 1933
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1911025
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Patent number 1,911,025
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Issue date May 23, 1933
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1906387
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Patent number 1,906,387
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Issue date May 2, 1933
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR