AN IMPROVED RAILWAY RAIL PAD. FACKENTHALL & WALLACE'S RAIL PAD. AN IMPROVED LIFE-PRESERVING CHAIR. Progress of Electrical Science. Surveyors. IMPROVED RECEIVING-TABLE FOR PRINTING PRESSES. BALTES' RECEIVING-TABLE FOR CYLINDER PRESSES. AN IMPROVED HINGE. BEER'S HINGE., scientific american, 1888-06-02


AN IMPROVED RAILWAY RAIL PAD. FACKENTHALL & WALLACE'S RAIL PAD. AN IMPROVED LIFE-PRESERVING CHAIR. Progress of Electrical Science. Surveyors. IMPROVED RECEIVING-TABLE FOR PRINTING PRESSES. BALTES' RECEIVING-TABLE FOR CYLINDER PRESSES. AN IMPROVED HINGE. BEER'S HINGE., scientific american, 1888-06-02


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