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Readily cleaned liquid transfer system
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Patent number 5,398,733
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Issue date Mar 21, 1995
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V. Q. Corporation
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Elmer S. Welch
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B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
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Flow controller
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Patent number 5,070,897
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Issue date Dec 10, 1991
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V.Q. Corp.
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Elmer S. Welch
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G05 - CONTROLLING REGULATING
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Pulsation dampener
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Patent number 4,979,441
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Issue date Dec 25, 1990
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Elmer S. Welch
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Clean in place diaphragm valve
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Patent number 4,339,111
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Issue date Jul 13, 1982
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Superior Stainless, Inc.
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Elmer S. Welch
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Valve handle retention system
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Patent number 4,311,164
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Issue date Jan 19, 1982
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Superior Stainless, Inc.
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Elmer S. Welch
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...