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1–20 von 12,655 Ergebnissen
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    Die Flugkunst ohne Schleier : Statistik von 1911 über die Flieger-Unfälle

    Neyen, Emil | GWLB - Gottfried Wilhelm Leibniz Bibliothek | 1912
    Schlagwörter: Helicopters

    Again the helicopter?

    Skerrett, Robert G. | Engineering Index Backfile | 1919
    Schlagwörter: Helicopters

    The Hewitt-Crocker helicopter

    Crocker, Francis Bacon | Engineering Index Backfile | 1920
    Schlagwörter: Helicopters

    Flying without wings

    Skerrett, Robert G. | Engineering Index Backfile | 1920
    Schlagwörter: Helicopters

    The problem of the helicopter

    Warner, Edward P. | Engineering Index Backfile | 1920
    Schlagwörter: Helicopters

    The problem of the helicopter

    Damblanc, Louis | Engineering Index Backfile | 1920
    Schlagwörter: Helicopters

      The problem of the helicopter

      Damblanc, Louis | Engineering Index Backfile | 1920
      Schlagwörter: Helicopters

    The possibilities of the helicopter

    Borck, Hermann | Engineering Index Backfile | 1920
    Schlagwörter: Helicopters

    Note on supporting propellers

    Lame´ / M. | Engineering Index Backfile | 1920
    Schlagwörter: Helicopters

    The Karman-Petroczy helicopter

    Engineering Index Backfile | 1921
    Schlagwörter: Helicopters

    A series of flight effected with helicopter on the 15 28 and 29 of Jan 1921

    Oehmichen, Etienne | Engineering Index Backfile | 1921
    Schlagwörter: Helicopters

    European developments in helicopters

    Engineering Index Backfile | 1921
    Schlagwörter: Helicopters

    Theoretical discussion of the problem of helicopters

    Karma` / n, Th.v. | Engineering Index Backfile | 1921
    Schlagwörter: Helicopters

    Helicopters

    Guguet, L. | Engineering Index Backfile | 1921
    Schlagwörter: Helicopters

    The actual state of the helicopter problem

    DeBothezat, G. | Engineering Index Backfile | 1921
    Schlagwörter: Helicopters

    Independent sustentation of an aeroplano in air

    Lame´ / M. | Engineering Index Backfile | 1921
    Schlagwörter: Helicopters

    Helicopters and aeroplane-helicopters

    Lame´ / M. | Engineering Index Backfile | 1921
    Schlagwörter: Helicopters

    Recent helicopters

    Lefranc, Jean-Abel | Engineering Index Backfile | 1921
    Schlagwörter: Helicopters

    Testing of helicopters

    Pescara, M. | Engineering Index Backfile | 1921
    Schlagwörter: Helicopters