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Internal pipe seal
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Patent number 8,480,093
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Issue date Jul 9, 2013
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Press-Seal Gasket Corporation
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James W. Skinner
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Expansion ring assembly
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Patent number 7,146,689
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Issue date Dec 12, 2006
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Press-Seal Gasket Corporation
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Ronald W Neuhaus
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Expansion ring assembly
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Patent number 6,805,359
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Issue date Oct 19, 2004
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Press-Seal Gasket Corporation
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Ronald W. Neuhaus
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Expandable compression ring
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Patent number 5,732,955
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Issue date Mar 31, 1998
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Press-Seal Gasket Corporation
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James W. Skinner
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Expandable compression ring
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Patent number 5,570,890
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Issue date Nov 5, 1996
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Press-Seal Gasket Corporation
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James W. Skinner
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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