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Primary view of The Dynamometer Hub for the Testing Propellers and Engines During Flight
Enoch, O.
July 1921
Primary view of Theory of the ideal windmill
Hoff, Wilhelm
July 1921
Primary view of The Problem of Fuel for Aviation Engines
Kutzbach & James, W. S.
July 1921
Primary view of The Caproni Seaplane
Munk, Max
July 1921
Primary view of The Drawing of Experimental Curves
Norton, F. H.
July 1921
Primary view of Laboratory Studies of the Trent Process
Perrott, G. St. John & Kinney, Selwyne Perez
July 1921
Primary view of Abacus for the Reduction of English Measures to the Metric System and Vice Versa
Tenani, Mario
July 1921
Primary view of U.S. Bureau of Standards Annual Report: 1921
United States. Bureau of Standards.
July 1921
Primary view of Flexible Petrol Pipe
unknown creator
July 1921
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