-
Concrete slab lifter
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Patent number 7,213,380
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Issue date May 8, 2007
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Gary A Justice
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3885688
-
Patent number 3,885,688
-
Issue date May 27, 1975
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2981426
-
Patent number 2,981,426
-
Issue date Apr 25, 1961
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES