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Molten asphalt spray mechanism
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Patent number 4,448,352
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Issue date May 15, 1984
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Crafco, Inc.
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Carl C. Jacobson
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Pavement cutting machine
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Patent number 4,175,788
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Issue date Nov 27, 1979
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Crafco, Inc.
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Carl C. Jacobson
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B28 - WORKING CEMENT, CLAY, OR STONE
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