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Valve and improved seat seal therefor
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Patent number 4,971,098
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Issue date Nov 20, 1990
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Cooper Industries, Inc.
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Daryl R. H. Stroud
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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By-pass valve
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Patent number 4,702,269
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Issue date Oct 27, 1987
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Donaldson Company, Inc.
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Fredrick E. Schuler
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Lubricated split plug valve
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Patent number 4,450,854
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Issue date May 29, 1984
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Vapor Corporation
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William H. Alexander
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Lubricated split plug valve
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Patent number 4,393,893
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Issue date Jul 19, 1983
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Vapor Corporation
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William H. Alexander
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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High pressure valve assembly
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Patent number 4,372,338
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Issue date Feb 8, 1983
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Dresser Industries, Inc.
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Chester C. Efferson
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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Valve assembly with relief groove
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Patent number 4,350,179
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Issue date Sep 21, 1982
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Stuart E. Bunn
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Respirator valve
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Patent number 4,262,689
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Issue date Apr 21, 1981
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Jerome A. Rodder
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Ball valve lubricating apparatus
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Issue date Apr 15, 1980
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Edward C. Suchy
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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High pressure valve
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Patent number 4,029,294
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Issue date Jun 14, 1977
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McEvoy Oilfield Equipment Co.
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John Walton McCaskill
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3696831
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Patent number 3,696,831
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Issue date Oct 10, 1972
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3692041
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Patent number 3,692,041
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Issue date Sep 19, 1972
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Issue date Nov 10, 1970
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3456677
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3414002
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3412748
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3392995
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3384337
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Patent number 3,384,337
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3348567
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3314441
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3314442
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Patent number 3,314,442
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Issue date Apr 18, 1967
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3280835
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3253609
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3229708
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Issue date Jan 18, 1966
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...