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7 ton hydraulic lifting jack, U.S. Capitol Ex. and Washington Aqueduct, Dudgeon's patent

7 ton hydraulic lifting jack, U.S. Capitol Ex. and Washington Aqueduct...

Drawing. This record contains unverified data from caption card. The original U.S. Capitol building, known as the "Old Capitol," was a small brick building that was completed in 1800. It served as the Capitol ... More