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Stabilized "O" ring gasket seal
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Patent number 6,139,026
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Issue date Oct 31, 2000
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Pfaudler, Inc.
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Morris E. Gruver
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Valve for clean chemical reactor
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Patent number 5,360,198
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Issue date Nov 1, 1994
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The Pfaudler Companies, Inc.
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Franklyn J. Amorese
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Valve for clean chemical reactor
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Patent number 5,069,423
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Issue date Dec 3, 1991
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The Pfaudler Companies, Inc.
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Franklyn J. Amorese
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL