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Patents > Office: FR & Grant date: 1919 & National tech categories: FR 6.4

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Year granted:
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Inventors:
None (14) · Émile Letord (6) · Gianni Caproni (4) · Thomas Sloper (4) · Alfred John Macy (3) · Jules Védrines (3) · Louis-Léon Astoux (3) · René-Joseph-Ghislain Straunard (3)
Inventor country:
Applicant person:
None (16) · Émile Letord (6) · Gianni Caproni (4) · Thomas Sloper (4) · Jules Védrines (3) · Alfred John Macy (3) · Louis-Léon Astoux (3) · René-Joseph-Ghislain Straunard (3)
Applicant is inventor:
Tech fields:
None (59) · airplane (25) · stability (10) · design (9) · construction (8) · control (8) · Propellers (5) · LTA (5) · frame (5) · automatic stability (5) · wings (5) · propulsion (4) · fuselage (4) · lift (4) · military (4) · Hydroaeroplane (4)
Filing date:
Full specification filed date:
Application number:
None (12)
Granted:
Supplementary to patent:
None (85) · Patent GB-1915-15085 (2) · Patent IT-1916-07-14 (2)
Related to aircraft:
Patent agent:
Lavoix et Mosès (21) · None (14) · None (11) · Paul Blum (10) · Société G. Breton, P. Audy, J. Rousset, A. Vergé (9) · J. Germain (7) · Brandon frères (7) · M. Zerolo (6) · J. Bonnet-Thirion et Breton (5) · Armengaud jeune (4) · Dony and Lejeune (3) · A. Mathieu (3) · Dupont et Elluin (2) · Hippolyte Josse (2) · Société G. Breton, P. Audy, J. Rousset, A Vergé (2) · T. Damas (2) · L. Chassevent (2) · Gaston Petiau (2) · Rigot et Prevost (2)
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National tech categories: (Click arrow to add another value)
IPCs:
IPC B64C17/00 (13) · IPC B64C3/00 (13) · IPC B64C1/00 (11) · IPC B64C35/00 (9) · None (7) · IPC B64C3/18 (7) · IPC B64C11/00 (5) · IPC B64C39/00 (4) · IPC B64C27/04 (4) · IPC B64B1/62 (4) · IPC B64C23/00 (3) · IPC B64C3/38 (3) · IPC B64C13/00 (3) · IPC B64C33/02 (3) · IPC B64C13/12 (3)
CPCs:
CPC B64C17/00 (13) · CPC B64C3/00 (13) · CPC B64C35/00 (9) · CPC B64C2700/6235 (8) · CPC B64C39/00 (5) · CPC B64C2001/0063 (5) · CPC B64C2700/6212 (5) · CPC B64C3/385 (4) · CPC B64C13/00 (4) · CPC B64C2700/6218 (4) · CPC B64C11/00 (4) · CPC B64C33/02 (4) · CPC B64B1/62 (4) · CPC B64C2700/6295 (4) · CPC B64C2700/6281 (3) · CPC B64C2700/6256 (3) · CPC B64C13/12 (3) · CPC B64C3/18 (3) · CPC B64C23/005 (3)
First filing:
Cites these patents:
Citations from after 1930:
Number of diagram pages:

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