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Patents > CPCs : CPC B64C17/00 or CPC B64C39/005 & Number of claims: 4-30

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Tech fields:
stability (165) · airplane (123) · automatic stability (67) · frame (51) · None (50) · design (35) · control (33) · propulsion (30) · navigation (28) · equilibrium (28) · aerodynamics (25) · rudder (24) · wings (23) · propeller (21) · construction (20) · wheels (16) · Pendulum (15) · LTA (15) · lift (15) · Subsystem (15)
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None (240) · Patent IT-1910-10-17 Carlo Navaro (3) · Patent US-1908-1077750 (3) · Patent DE-1911-11-16 Otto Albin Budig (2) · Patent FR-1912-442419 (2) · Patent FR-1911-443878 (2) · Patent FR-1910-435648 (2) · Patent FR-1910-428665 (2) · Patent FR-1910-414892 (2) · Patent US-1908-1081147 (2) · Patent FR-1902-326476 (2) · Patent US-1908-989022 (2) · Patent IT-1911-06-09 Carlo Navaro (2) · Patent BE-1911-05-15 Georges de Bothezat (2) · Patent US-1916-1208684 (2) · Patent US-1914-1169695 (2) · Patent AU-1911-510 (2)
Related to aircraft:
Patent agent:
None (48) · Armengaud jeune (15) · Munn & Co. (14) · Marks & Clerk (12) · Victor J. Evans (11) · E. Blétry (9) · None (7) · Charles Dony (6) · H. D. Fitzpatrick & Co. (5) · Lewis William Goold (5) · Herbert Haddan & Co. (4) · Société A. Frey et de Carsalade (4) · Boramé et Julien (4) · Charles W. Hills (4)
National tech categories:
None (110) · FR 6.4 (88) · USPC 244/80 (41) · USPC 244/20 (12) · USPC 244/177 (12) · USPC 244/70 (8) · USPC 244/9 (8) · USPC 244/93 (7) · DE 77h.5 (4) · FR 6.3 (4) · USPC 244/19 (3) · USPC 244/90R (3) · USPC 244/218 (2) · USPC 244/64 (2) · USPC 416/112 (2) · USPC 244/139 (2) · USPC 416/113 (2) · USPC 244/92 (2) · USPC 244/82 (2)
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