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Railroad communication tie
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Patent number 6,604,689
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Issue date Aug 12, 2003
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Tie & Track Systems, Inc.
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Alan Briggs
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Unitary steel railroad tie
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Patent number 5,836,512
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Issue date Nov 17, 1998
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Tie & Track Systems, Inc.
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Alan Briggs
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES