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)
Patent department
Aeronautics
Aeronautics ; 4 , n 6
1929
8 pages
25 Figs.
Aufsatz (Zeitschrift)
Englisch
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Engineering Index Backfile | 1929
Engineering Index Backfile | 1929
Engineering Index Backfile | 1928
Engineering Index Backfile | 1928
Engineering Index Backfile | 1929