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Tensile truss mast
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Patent number 9,908,750
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Issue date Mar 6, 2018
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Par Systems, Inc.
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Albert J. Sturm
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B66 - HOISTING LIFTING HAULING
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Telescoping tube assembly
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Patent number 6,026,970
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Issue date Feb 22, 2000
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Par Systems, Inc.
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Albert J. Sturm
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B66 - HOISTING LIFTING HAULING
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Telescoping tube assembly
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Patent number 5,465,854
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Issue date Nov 14, 1995
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Par Systems, Inc.
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Albert J. Sturm
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B66 - HOISTING LIFTING HAULING