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Fabric insertion system
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Patent number 4,440,088
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Issue date Apr 3, 1984
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Black Clawson, Inc.
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John A. Wallace
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Undertrack fabric applicator
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Patent number 4,250,812
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Issue date Feb 17, 1981
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Loram Maintenance of Way
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Lawrence D. Trottochau
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3872929
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Patent number 3,872,929
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Issue date Mar 25, 1975
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2440921
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Patent number 2,440,921
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Issue date May 4, 1948
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2357769
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Patent number 2,357,769
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Issue date Sep 5, 1944
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES