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Non-leaking valve
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Patent number 5,509,435
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Issue date Apr 23, 1996
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Occidental Chemical Corporation
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Charles R. Rutan
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Oil drain valve assembly
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Patent number 5,096,158
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Issue date Mar 17, 1992
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Illinois Tool Works Inc.
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Douglas Burdick
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Valve
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Patent number 4,986,297
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Issue date Jan 22, 1991
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Control Devices, Inc.
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Paul F. Ross
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F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
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Upper valve component
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Patent number 4,899,982
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Issue date Feb 13, 1990
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Fluhs Drehtechnik GmbH
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Peter Lange
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Drain and shutoff valve assembly
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Patent number 4,784,174
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Issue date Nov 15, 1988
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A. O. Smith Corporation
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William E. Ryan
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Bonnet lock
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Patent number 4,746,095
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Issue date May 24, 1988
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Anderson, Greenwood & Co.
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Walter T. Roush
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Valve and tapping tee apparatus and method
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Patent number 4,730,636
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Issue date Mar 15, 1988
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Perfection Corporation
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Frank R. Volgstadt
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Manual relief gas vent
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Patent number 4,688,591
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Issue date Aug 25, 1987
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W. R. Grace & Co.
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Steven S. Edson
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Safe high pressure instrument valve
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Patent number 4,623,120
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Issue date Nov 18, 1986
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Air-Dry Corporation of America
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Francis Leighton
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Valve assembly
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Patent number 4,601,304
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Issue date Jul 22, 1986
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Howard T. Schobl
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Faucet repair system
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Patent number 4,548,224
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Issue date Oct 22, 1985
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Robert McLaughlin
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Safe high pressure instrument valve
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Patent number 4,519,580
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Issue date May 28, 1985
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Air-Dry Corporation
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Francis Leighton
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Swivel valve
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Patent number 4,408,745
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Issue date Oct 11, 1983
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American Standard, Inc.
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Richard H. Swiers
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Actuator mechanism for lift-turn valves
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Patent number 4,320,777
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Issue date Mar 23, 1982
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Daniel Industries, Inc.
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Jerry B. Tomlin
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Union bonnet valve
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Patent number 4,149,699
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Issue date Apr 17, 1979
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Gould Inc.
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Donald R. Speckmann
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3906992
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Patent number 3,906,992
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Issue date Sep 23, 1975
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3572369
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Patent number 3,572,369
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3529807
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Patent number 3,529,807
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3481360
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Patent number 3,481,360
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Issue date Dec 2, 1969
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3443789
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Patent number 3,443,789
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Issue date May 13, 1969
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3412750
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Patent number 3,412,750
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Issue date Nov 26, 1968
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3348570
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Patent number 3,348,570
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Issue date Oct 24, 1967
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3153421
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Patent number 3,153,421
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Issue date Oct 20, 1964
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3130483
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Patent number 3,130,483
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Issue date Apr 28, 1964
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3114385
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Patent number 3,114,385
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Issue date Dec 17, 1963
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...