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Key-engaging part structure
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Patent number 7,237,976
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Issue date Jul 3, 2007
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Sumitomo Heavy Industries, Ltd.
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Masahiro Shimada
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Lifter bore groover tool
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Patent number 6,470,781
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Issue date Oct 29, 2002
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John Foster
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Table-top type key-seater
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Patent number 6,095,730
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Issue date Aug 1, 2000
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Asa Electronic Industry Co., Ltd.
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Yukihiro Asa
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Slotting
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Patent number 5,390,408
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Issue date Feb 21, 1995
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A. E. Bishop & Associates Pty Limited
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Arthur E. Bishop
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Slotting machines
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Patent number 5,328,309
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Issue date Jul 12, 1994
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A E Bishop & Associates Pty Limited
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Arthur E. Bishop
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Slotting machines
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Patent number 5,292,214
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Issue date Mar 8, 1994
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A. E. Bishop & Associates Pty Limited
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Arthur E. Bishop
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Slot forming apparatus
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Patent number 4,978,263
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Issue date Dec 18, 1990
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Peter H. Sheppard
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Sewer cleaning device
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Patent number 4,773,115
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Issue date Sep 27, 1988
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Systems Canada Limited
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Robert C. Smith
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B08 - CLEANING
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Portable key seat cutter
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Patent number 4,284,377
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Issue date Aug 18, 1981
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Piper; Bert William
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Bert W. Piper
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Controlled depth scoring system
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Patent number 4,248,559
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Issue date Feb 3, 1981
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Union Carbide Corporation
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Carl M. Deckenback
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Bore slotting machine
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Patent number 4,154,145
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Issue date May 15, 1979
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Arthur E. Bishop
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Internal grooving machine
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Patent number 4,138,927
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Issue date Feb 13, 1979
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Ira B. Hamil
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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