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Apparatus and method for repairing pipes
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Patent number 9,074,720
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Issue date Jul 7, 2015
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Perma-Liner Industries, LLC
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Gerald D'Hulster
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Method and device for repairing piping
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Patent number 8,869,839
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Issue date Oct 28, 2014
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Perma-Liner Industries, LLC
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Gerald Scott D'Hulster
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Method and device for repairing piping
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Patent number 8,807,172
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Issue date Aug 19, 2014
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Perma-Liner Industries, LLC
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Gerald D'Hulster
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Scrim-enforced pipe liner
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Patent number 8,590,575
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Issue date Nov 26, 2013
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Perma-Liner Industries, LLC
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Gerald Scott D'Hulster
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...