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Liner for lateral pipe line
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Patent number 11,028,956
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Issue date Jun 8, 2021
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SAK Construction, LLC
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Boyd Hirtz
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Mechanized inverter for pipe liners
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Patent number 10,919,212
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Issue date Feb 16, 2021
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SAK CONSTRUCTION LLC
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Steve Hirtz
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Liner for lateral pipe line
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Patent number 10,502,356
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Issue date Dec 10, 2019
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SAK Construction, LLC
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Boyd Hirtz
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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