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Arch end cap
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Patent number 4,445,542
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Issue date May 1, 1984
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Hancor, Inc.
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James L. Fouss
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Subterranean plastic tank
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Patent number 4,359,167
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Issue date Nov 16, 1982
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Hancor, Inc.
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James L. Fouss
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Snap-in tee connector
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Patent number 4,286,808
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Issue date Sep 1, 1981
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Hancor, Inc.
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James L. Fouss
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Subterranean plastic tank
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Patent number 4,254,885
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Issue date Mar 10, 1981
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Hancor, Inc.
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James L. Fouss
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Arch conduit
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Patent number 4,245,924
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Issue date Jan 20, 1981
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Hancor, Inc.
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James L. Fouss
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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