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Restraining element for pressure pipe joints
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Patent number 5,464,228
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Issue date Nov 7, 1995
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United States Pipe and Foundry Company
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Joe Weber
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Restraining element for pressure pipe joints
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Patent number 5,295,697
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Issue date Mar 22, 1994
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United States Pipe and Foundry Company
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Joe Weber
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Restrained joint with gripper gland
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Patent number 4,867,488
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Issue date Sep 19, 1989
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United States Pipe and Foundry Company
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Lawrence S. Jones
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Method of making pipe-joint gasket
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Patent number 4,756,784
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Issue date Jul 12, 1988
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United States Pipe and Foundry Company
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Lawrence S. Jones
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Large deflection pipe coupling
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Patent number 4,685,705
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Issue date Aug 11, 1987
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United States Pipe and Foundry Company
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Lawrence S. Jones
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Restrained pipe joint
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Patent number 4,660,866
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Issue date Apr 28, 1987
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United States Pipe and Foundry Company
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Lawrence S. Jones
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Restrained pipe joint
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Patent number 4,540,204
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Issue date Sep 10, 1985
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United States Pipe and Foundry Company
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Billy J. Battle
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Guides for gate valves
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Patent number 4,532,957
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Issue date Aug 6, 1985
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United States Pipe and Foundry Company
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Billy J. Battle
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...