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Air feed peck drill
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Patent number 5,328,302
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Issue date Jul 12, 1994
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Indresco, Inc.
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Richard E. Eckman
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Mechanical peck drill and method
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Patent number 5,205,681
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Issue date Apr 27, 1993
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Dresser Industries, Inc.
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Richard E. Eckman
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Mechanical peck drill
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Patent number 5,149,232
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Issue date Sep 22, 1992
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Dresser Industries, Inc.
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Richard E. Eckman
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Mechanical peck drill and method
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Patent number 5,062,745
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Issue date Nov 5, 1991
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Dresser Industries, Inc.
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Richard E. Eckman
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Positive feed drill use counter
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Patent number 4,702,650
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Issue date Oct 27, 1987
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Dresser Industries, Inc.
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Robert F. Golwas
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Power tool reaction brace
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Patent number D290220
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Issue date Jun 9, 1987
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Dresser Industries, Inc.
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Richard E. Eckman
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D08 - Tools and hardware
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Screwdriver
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Patent number 4,631,992
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Issue date Dec 30, 1986
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Dresser Industries, Inc.
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Richard E. Eckman
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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Pneumatic tools
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Patent number 4,631,012
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Issue date Dec 23, 1986
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Dresser Industries, Inc.
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Richard E. Eckman
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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-
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Inlet control valve
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Patent number 4,258,799
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Issue date Mar 31, 1981
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Dresser Industries, Inc.
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Richard E. Eckman
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Bit retainer for pneumatic tools
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Patent number 4,174,113
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Issue date Nov 13, 1979
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Dresser Industries, Inc.
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Richard E. Eckman
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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Low torque automatic screwdriver
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Patent number 4,154,308
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Issue date May 15, 1979
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Dresser Industries, Inc.
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Emory G. Goldsberry
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS