Abstracts of patents pertaining to airplanes appeared in each issue of Aviation. (See also - vo. 29)
Abstracts of patents pertaining to airplanes appeared in each issue of aviation
Aircraft Eng
Aircraft Engineering ; 29
1930
Aufsatz (Zeitschrift)
Englisch
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Engineering Index Backfile | 1929
Recent machine shop patents appeared in each issue
Engineering Index Backfile | 1930
Abridgments of recent patents relating to railways appeared in each issue
Engineering Index Backfile | 1929
Brief abstracts of patents pertaining to Automobiles
Engineering Index Backfile | 1929
|Abridgments of recent patents by C. B. Waterlow appeared in each issue of motor transport
Engineering Index Backfile | 1929