Describes Schneebeli and Birger apparatus for reducing noise.
The silent airplane and the silent en gine
L'avion silencieux et la moteur silencieux
Aeronautique ; 4 , n 36
1922
3 pages
3 Figs.
Article (Journal)
French
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SLUB | 2002
|Online Contents | 2003
|Online Contents | 2003