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This wiki has 2 patents in category "CPC B64C2700/6283".
Patents in category CPC B64C2700/6283
- Patent FR-1912-435971.16649 (English title: Improvements in propellers and in lift surfaces of airplanes, Inventors: Pierre Le Goaziou, Supplementary to patent: Patent FR-1911-435971, Filing date: 1912-10-28)
- Patent FR-1916-502520.22245 (English title: Rotary wing aircraft, Inventors: Alexis Beurrier • Edmond Bigourdan • Louis Lacoin, Supplementary to patent: Patent FR-1915-502520, Filing date: 1916-11-02)