NEW DRAG SAWING MACHINE. Manganese Bronze. ALTERS & BRASINGTON'S DRAG SAW. Improved Process for the Manufacture of Gypsum Casts. Employment. Tide Water Pipe Company (Limited) Opened. New Alloy., scientific american, 1879-07-12


NEW DRAG SAWING MACHINE. Manganese Bronze. ALTERS & BRASINGTON'S DRAG SAW. Improved Process for the Manufacture of Gypsum Casts. Employment. Tide Water Pipe Company (Limited) Opened. New Alloy., scientific american, 1879-07-12


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