Inventors at work, with chapters on discovery (1906)
Iles, George, 1852-1942 · New York, Doubleday, Page & company · leaf 230
trolley cars, notweakened by being cut froma casting across the grain of the metal. Sometimes the article manufactured requires a seriesof operations, as in the case of a kettle cover with its knob. Atthe Lalance & Grosjean factory, Woodhaven, New York, a Blisspress makes such covers in a… … Barrel of pressed steel. 186 PROPERTIES—METALS
Inventions · Inventors
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