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Patents > IPCs : IPC B64B1/00 or IPC B64C3/38 & Number of text pages: 2-3

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Tech fields:
LTA (199) · frame (75) · airplane (65) · navigation (59) · balloon (57) · Propulsion (49) · design (45) · dirigible (37) · stability (35) · construction (32) · airship (30) · wings (27) · hybrid (25) · Dirigibles (23) · balloons (22) · car (20) · rigid (19) · control (19) · propeller (18)
Full specification filed date:
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Supplementary to patent:
None (216) · Patent FR-1913-472867 (3) · Patent FR-1913-467415 (3) · Patent ES-1906-38692 (3) · Patent FR-1912-449167 (3) · Patent FR-1908-392672 (2) · Patent FR-1902-317598 (2) · Patent FR-1914-472867.19895 (2) · Patent IT-1913- (2) · Patent FR-1907-382794 (2) · Patent BE-1912-07-11 Maiche et Legras (2)
Related to aircraft:
Patent agent:
None (71) · Armengaud jeune (20) · None (13) · Haseltine, Lake & Co. (8) · Boramé et Julien (8) · Munn & Co. (6) · Hippolyte Josse (6) · E. Blétry (6) · Chassevent (6) · Brandon frères (6) · Lavoix et Mosès (6) · J. Bonnet-Thirion (5) · Boult, Wade & Tennant (5) · C. Blétry (4) · Ad. Sturm (4) · Ed. Wolf (4) · G. de Mestral et F. Harlé (4) · C. Baumann (4)
National tech categories:
FR 6.4 (138) · None (58) · FR 6.3 (33) · USPC 244/30 (16) · USPC 244/26 (7) · DE 77h.2 (7) · DE 77h.5 (6) · USPC 244/96 (6) · USPC 244/25 (5) · USPC 244/32 (5) · USPC 244/125 (4) · DE 77 (4) · USPC 104/22 (4) · USPC 244/127 (4) · USPC 244/48 (4) · USPC 244/67 (4) · USPC 244/97 (3) · USPC 244/29 (3) · USPC 244/99 (3)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64B1/00 (218) · CPC B64C3/385 (64) · CPC B64B1/40 (15) · CPC B64C3/38 (11) · CPC B64B1/58 (8) · CPC B64B1/005 (4) · CPC B64B1/62 (3) · CPC B64B1/50 (3) · None (3) · CPC B61B5/02 (2) · CPC B64B1/60 (2) · CPC B64F2700/6219 (2) · CPC Y10T24/3747 (2) · CPC B64C17/00 (2) · CPC B64C2700/6242 (2)
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