196 Scientific American March 14, 1908. … A Single Plate Mold. B Double Plate Mold. C Steam Spaces In Press Plates. D Hydraulic Pressure LIGHT THE 2000 lbs. square inch. NEW YORK BELTING & METAL STRONGEST PACKING COMPANY, Ltd. 91 & 93 Chambers Street, New York McADAMITE FOR PATENTEES Specific Gravity 3.20 Ji skilled mechanic A New Book…
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