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Tetrahexagonal truss structure
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Patent number 5,070,673
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Issue date Dec 10, 1991
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Tetrahex, Inc.
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Dick O. Weisse
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Tetrahexagonal truss structure
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Patent number 4,967,533
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Issue date Nov 6, 1990
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Tetrahex, Inc.
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Dick O. Weisse
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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