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Pump body and method for making same
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Patent number 6,343,916
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Issue date Feb 5, 2002
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Rexam Sofab
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Jean-Louis Bougamont
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Method for making piston rings
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Patent number 5,809,643
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Issue date Sep 22, 1998
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E. Grant Swick
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Piston rings
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Patent number 5,752,705
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Issue date May 19, 1998
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AE Piston Products Limited
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Robert Plant
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Manufacture of piston rings
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Patent number 5,502,880
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Issue date Apr 2, 1996
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T&N Technology Limited
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Richard J. Sharp
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Piston rings
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Patent number 5,068,963
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Issue date Dec 3, 1991
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T&N plc
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John S. Bruce
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Piston ring manufacturing method
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Patent number 4,835,856
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Issue date Jun 6, 1989
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Sanden Corporation
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Katsumasa Azami
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Piston rings with a gap seal
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Patent number 4,713,867
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Issue date Dec 22, 1987
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Duke Fox
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3913199
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Patent number 3,913,199
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Issue date Oct 21, 1975
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3811166
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Patent number 3,811,166
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Issue date May 21, 1974
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3758929
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Patent number 3,758,929
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Issue date Sep 18, 1973
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3757413
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Patent number 3,757,413
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Issue date Sep 11, 1973
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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3683477
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Patent number 3,683,477
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Issue date Aug 15, 1972
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3670383
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Patent number 3,670,383
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Issue date Jun 20, 1972
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3633260
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Patent number 3,633,260
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Issue date Jan 11, 1972
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR