1–20 von 2,421 Ergebnissen
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    Radio-electric methods for guidance in marine and aerial navigation

    David, P. | Engineering Index Backfile | 1930

    The aerodynamic characteristics of full scale propellers having 2, 3, and 4 blades of clark y and RAF 6 airfoil sections

    Hartman, Edwin P. / Biermann, David | SLUB | 1938
    Beteiligte: Hartman, Edwin P. , Biermann, David

    Static Thrust and Power Characteristics of Six Full-Scale Propellers

    Hartman, Erwin P / Biermann, David | NTRS | 1940

    NEW METHODS OF SECURING IMPROVED AIR CLEANER EFFICIENCY

    EASTMAN, DAVID P. | SAE Technical Papers | 1952