. Official proceedings . AVIATION AND THE RAILROADS By R. W. COST, Railroad and Aviation Lighting Engineer,Westinghouse Lamp Company, Bloomfield, N. J. Steel Car Forge Company PITTSBURGH, PENNSYLVANIA FORCINGS Dieter Lock and Holding Nuts STANDARD SAFETY NOTCORPORATION. 30 CHURCH ST. NEW YORK LOX-ON DEVICES CORPORATION PAUL W. DIETER, President30 CHURCH STREET NEW YORK CITY LEWIS IRON, ^The Iron Superior Penn Iron & Steel Company, Creighton, Pa. SOLE SALES AGENTS,Joseph T. Ryerson & Son, Inc., Chicago, III. OFFICIAL PROCEEDINGS OF The Railway Club of Pittsburgh Organized October 18, 1901 Publi
. Official proceedings . AVIATION AND THE RAILROADS By R. W. COST, Railroad and Aviation Lighting Engineer,Westinghouse Lamp Company, Bloomfield, N. J. Steel Car Forge Company PITTSBURGH, PENNSYLVANIA FORCINGS Dieter Lock and Holding Nuts STANDARD SAFETY NOTCORPORATION. 30 CHURCH ST. NEW YORK LOX-ON DEVICES CORPORATION PAUL W. DIETER, President30 CHURCH STREET NEW YORK CITY LEWIS IRON, ^The Iron Superior Penn Iron & Steel Company, Creighton, Pa. SOLE SALES AGENTS,Joseph T. Ryerson & Son, Inc., Chicago, III. OFFICIAL PROCEEDINGS OF The Railway Club of Pittsburgh Organized October 18, 1901 Published monthly, except June, July and August, by The Railway Club ofPittsburgh, J. D. Conway, Secretary, 515 Grandview Ave., Pittsburgh, Pa. Entered as Second Class Matter February 6, 1915, at the Postoffice at Pittsburgh,under the Act of March 3, 1879. Vol. XXIXNo. 3 Pittsburgh, Pa., January 23, 1930 $ Per Year25c Per Copy . haveProvpn vorj^ successfulin evevif phase of Railroad usa^e, C p OT^e ^an Compami
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