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Patents > Year filed: 1917 & Grant date: 1921 & Family year: 1910 - 1919

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None (5) · Gabriel Voisin (4) · Jean-Adolphe Leseurre (3) · Charles-Édouard-Pierre Gourdou (3) · Robert-Jules-Marie-Antoine Desmons (2) · HANRIOT (2) · James Vernon Martin (2)
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CPCs:
CPC B64C3/00 (8) · CPC B64C2700/6233 (6) · None (3) · CPC B64C35/00 (3) · CPC B64C23/005 (3) · CPC B64C17/00 (3) · CPC B64C2700/6212 (3) · CPC B64C2700/6295 (2) · CPC B64C3/18 (2) · CPC B64C2700/6274 (2) · CPC B64C2001/0063 (2) · CPC B64C39/00 (2) · CPC B64C13/00 (2)
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