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- |designer=[[Marc Birkigt]] ...tain [[Emilio de la Cuadra]]. It was later joined by Swiss engineer [[Marc Birkigt]].14 KB (2,059 words) - 20:17, 2 July 2010
- ....9. This design was later abandoned by Hispano-Suiza. In the 1930s, [[Marc Birkigt]] designed an entirely new [[Gas-operated reloading|gas-operated]] cannon w3 KB (507 words) - 21:08, 2 July 2010