Descriptions of patents are given, including aircraft flotation device, aircraft provided with rotating wing surfaces, five airplanes, aircraft, two helicopter airplanes, parachute for airplanes, power system for airplanes, airplane take-off, combination airship and airplane, airplane landing apparatus, airplane launching gear, spring opener for pilot parachutes, aviator's helmet, and tunnel airboat. (see also vol. 5, no. 1, July 1929, pp. 94-97, 9 figs)


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    Title :

    Patent department


    Additional title:

    Aeronautics


    Published in:

    Aeronautics ; 4 , n 6


    Publication date :

    1929


    Size :

    8 pages


    Remarks:

    25 Figs.


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Patent department

    Engineering Index Backfile | 1929


    Patent department

    Engineering Index Backfile | 1929


    Patent department

    Engineering Index Backfile | 1928


    Patent department

    Engineering Index Backfile | 1928


    Patent department

    Engineering Index Backfile | 1929