Pittsburgh Plate Glass Company · Pittsburgh, PA : The Company · leaf 12
w glass plant, Clarksburg, W. Va. enlarged; and at Lincoln, Illinois, a new plant, previously operated by Pittsburgh Corning Corporation, was purchased for production of Twindo- Weld. This is a new type of double-glazed window in which two lights of glass are electrically welded at the edges… … had perfect safety records and 10 plants were recipients of awards for outstanding safety practices. EIGHT
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Internet Archive · University of Illinois Urbana-Champaign · Public domain (published before 1931). Free to use for anything.