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Patents > IPCs : IPC B64B1/00 or IPC B64C27/04 & Number of diagram pages: 1-3

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Tech fields:
LTA (266) · balloon (75) · frame (75) · propulsion (72) · navigation (61) · dirigible (48) · hybrid (48) · airship (45) · design (44) · helicopter (44) · construction (37) · airplane (37) · stability (33) · propellers (30) · propeller (27) · dirigibles (27) · car (27) · balloons (26) · Rigid (22) · safety (21)
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Supplementary to patent:
None (294) · Patent FR-1913-472867 (4) · Patent ES-1906-38692 (3) · Patent FR-1913-467415 (3) · Patent CH-1909-48028 (2) · Patent FR-1902-317598 (2) · Patent GB-1913-11207 (2) · Patent FR-1907-382794 (2) · Patent US-1913-1087946 (2) · Patent FR-1915-478440 (2) · Patent IT-1913- (2) · Patent FR-1914-472867.19895 (2) · Patent BE-1912-07-11 Maiche et Legras (2) · Patent FR-1908-407090 (2) · Patent US-1911-1011761 (2)
Related to aircraft:
Patent agent:
None (102) · None (24) · Armengaud jeune (18) · Haseltine, Lake & Co. (10) · Boramé et Julien (10) · Munn & Co. (8) · Lavoix et Mosès (7) · Chassevent (7) · Brandon frères (7) · Hippolyte Josse (6) · Marks & Clerk (6) · G. Petiau (6) · C. Blétry (6) · G. de Mestral et F. Harlé (5) · Ed. Wolf (5) · E. Blétry (5) · Dupont et Elluin (5) · De Bonge (5) · J. Germain (5)
National tech categories:
FR 6.4 (178) · None (75) · FR 6.3 (43) · USPC 244/30 (22) · DE 77h.2 (11) · USPC 244/26 (9) · DE 77 (8) · USPC 244/32 (7) · USPC 244/25 (7) · USPC 244/127 (6) · DE 77h (5) · USPC 244/96 (5) · USPC 244/125 (5) · USPC 104/22 (4) · USPC 244/97 (4) · USPC 24/713.8 (4) · USPC 244/67 (3) · USPC 244/128 (3) · USPC 244/29 (3) · DE 77h.6 (3)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64B1/00 (284) · CPC B64C2700/6281 (68) · CPC B64C27/04 (52) · CPC B64B1/40 (20) · CPC B64C27/12 (16) · CPC B64B1/58 (9) · CPC B64B1/005 (8) · CPC B64C27/20 (8) · None (4) · CPC Y10T24/3747 (4) · CPC B64F2700/6219 (4) · CPC B64C29/0025 (4) · CPC B64C39/06 (3) · CPC B64B1/50 (3) · CPC B64B1/62 (3) · CPC B64C27/00 (2) · CPC B64C27/52 (2) · CPC B61B5/02 (2) · CPC B64B1/60 (2) · CPC B64B1/06 (2)
First filing:
Citations from after 1930:
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