New York, N.Y. : Scientific American Pub. Co. · leaf 448
430 SCIENTIFIC AMERICAN MONTHLY May, 1920 … DRAWN AT 350 DBG. F. DRAWN AT 700 DEG. F. DRAWN AT 1100 DEG. F. TRANSVERSE SECTIONS OF TYPE I-A ALLOY MAGNIFIED 300 DIAMETERS of semi-<machined parts. Furthermore, material submitted steel when drawn at different temperatures. All of the steels to the machine shop is completed without the loss of…
Technology · Science
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
