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Patents > National tech categories : FR 6.4 or GB 4 with buoyant & Number of figures: 1-2

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None (304) · Patent FR-1908-392672 (8) · Patent GB-1911-29012 (3) · Patent FR-1909-410140 (3) · Patent FR-1907-373818 (3) · Patent DE-1912-07-11 Luft Fahrzeug G.m.b.H. (2) · Patent FR-1913-461629 (2) · Patent FR-1913-456298 (2) · Patent FR-1912-452017 (2) · Patent FR-1912-450121 (2) · Patent FR-1912-441089 (2) · Patent FR-1911-429224 (2) · Patent FR-1910-421420 (2) · Patent FR-1909-420322 (2) · Patent FR-1909-405220 (2) · Patent FR-1907-392977 (2) · Patent FR-1909-411204 (2) · Patent AT-1909-48421 (2) · Patent AT-1911-57225 (2)
Related to aircraft:
Patent agent:
None (56) · Armengaud jeune (49) · None (39) · E. Blétry (24) · Dupont et Elluin (21) · Hippolyte Josse (16) · Lavoix et Moses (15) · J. Bonnet-Thirion (15) · Y. Rabilloud et fils (12) · Boramé et Julien (11) · J. Germain (11) · Charles Dony (11) · Brandon freres (10) · H. Bœttcher fils (8) · Schwab (8) · G. de Mestral et F. Harlé (7) · de Bongé (7) · Rigot et Prévost (6) · Dom. Casalonga (6)
National tech categories: (Click arrow to add another value)
IPCs:
IPC B64C17/00 (71) · IPC B64C1/00 (55) · IPC B64C39/00 (42) · IPC B64B1/00 (28) · None (22) · IPC B64C3/00 (20) · IPC B64C11/00 (20) · IPC B64C3/38 (17) · IPC B64C35/00 (17) · IPC B64B1/58 (17) · IPC B64C23/00 (17) · IPC B64C13/00 (16) · IPC B64C25/00 (14) · IPC B64C27/04 (13) · IPC B64C3/54 (11) · IPC B64D17/00 (9) · IPC B64C17/06 (8) · IPC B64C3/52 (7) · IPC B64B1/40 (7)
CPCs:
CPC B64C17/00 (75) · CPC B64C39/00 (37) · CPC B64C2700/6295 (30) · CPC B64C2700/6218 (29) · CPC B64B1/00 (27) · CPC B64C13/00 (21) · CPC B64C3/00 (19) · CPC B64C23/005 (18) · CPC B64C3/385 (17) · CPC B64B1/58 (17) · CPC B64C2700/6212 (14) · CPC B64C2700/6256 (12) · CPC B64C35/00 (12) · CPC B64C2700/6274 (12) · CPC B64C2700/6281 (11) · CPC B64C2700/6235 (10) · CPC B64C3/54 (10) · CPC B64C11/006 (10)
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