Drilldown: Patents

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Patents > Year granted: 1920 - 1929 & National tech categories : FR 6.4 or USPC 244/81

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Year granted:
Office:
Inventors:
None (23) · Gabriel Voisin (7) · Jean-Adolphe Leseurre (4) · Paul Schmitt (4) · Charles-Édouard-Pierre Gourdou (4) · Louis Blériot (4) · Maurice-Achille Lécuyer (3) · Émile-Louis Letord (3) · Émile Letord (3) · Adolphe Clément-Bayard (3)
Inventor country:
Applicant person:
None (24) · Gabriel Voisin (7) · Charles-Édouard-Pierre Gourdou (4) · Louis Blériot (4) · Jean-Adolphe Leseurre (4) · Paul Schmitt (4) · Adolphe Clément-Bayard (3) · Maurice-Achille Lécuyer (3) · Émile-Louis Letord (3) · Émile Letord (3)
Applicant is inventor:
Full specification filed date:
Application number:
None (30) · 496388D (3) · 510210D (2)
Granted:
Publication date:
Supplementary to patent:
None (79) · Patent FR-1917-504302 (3) · Patent FR-1916-493411 (2) · Patent FR-1916-502839 (2) · Patent FR-1915-525800 (2)
Related to aircraft:
Patent agent:
Armengaud jeune (12) · None (10) · None (9) · M. Zerolo (8) · J. Germain (7) · Dupont et Elluin (5) · Dony and Lejeune (5) · Société G. Breton, P. Audy, J. Rousset, A. Vergé (5) · Paul Blum (5) · Louis Tailfer (4) · Weismann et Marx (4) · Brandon frères (3) · E. Wattier (3) · Hippolyte Josse (3)
National tech categories: (Click arrow to add another value)
IPCs:
IPC B64C3/00 (10) · IPC B64C13/00 (8) · IPC B64C23/00 (7) · IPC B64C3/18 (6) · IPC B64C17/00 (6) · None (6) · IPC B64C11/00 (5) · IPC B64C3/54 (5) · IPC B64C1/00 (5) · IPC B64C35/00 (5) · IPC B64C25/00 (5) · IPC B64C13/12 (4) · IPC B64C39/00 (4) · IPC B64C25/36 (3) · IPC B64C1/06 (3) · IPC B64D27/00 (3)
CPCs:
CPC B64C3/00 (10) · CPC B64C13/00 (9) · CPC B64C17/00 (7) · CPC B64C23/005 (7) · CPC B64C35/00 (6) · CPC B64C2700/6233 (6) · CPC B64C13/12 (4) · CPC B64C3/54 (4) · CPC B64C2700/6218 (4) · CPC B64C2700/6274 (4) · CPC B64C11/00 (4) · CPC B64C2001/0063 (3) · CPC B64C11/04 (3) · CPC B64C2700/6256 (3) · CPC B64D27/00 (3) · CPC B64C3/18 (3)
First filing:
Cites these patents:
Citations from after 1930:
Number of diagram pages:

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