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Patents > Year filed: 1909 & Inventor country : ES or US

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Tech fields:
airplane (106) · frame (87) · None (82) · propeller (74) · navigation (62) · stability (59) · propulsion (53) · rudder (51) · LTA (42) · wheels (32) · takeoff (25) · safety (24) · propellers (23) · hybrid (23) · car (22) · design (22) · helicopter (20) · flapping (17) · airfoil (16) · construction (16)
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Supplementary to patent:
None (267) · Patent US-1909-970771 (8) · Patent US-1909-1010443 (5) · Patent US-1908-927605 (5) · Patent US-1908-1081147 (5) · Patent US-1908-1077750 (5) · Patent ES-1906-38692 (4) · Patent US-1909-940701 (3) · Patent US-1908-989022 (3) · Patent US-1908-935766 (3) · Patent US-1908-922952 (3) · Patent US-1908-12-14-Lee (3) · Patent FR-1907-382794 (3) · Patent GB-1909-12256 (2) · Patent US-1908-12-14 (2)
Patent agent:
None (157) · Munn & Co. (13) · Herbert Haddan & Co. (8) · None (7) · Michael J. Stark & Sons (4) · Wheatley & Mackenzie (3) · Watson E. Coleman (3) · Ed. Wolf (3) · Frank Briesen (3) · Spencer Heath (3) · Frank T. Wentworth (3)
National tech categories:
None (84) · FR 6.4 (19) · USPC 244/45R (10) · USPC 244/80 (8) · USPC 244/22 (8) · USPC 244/65 (7) · USPC 244/20 (6) · USPC 244/48 (6) · USPC 244/93 (6) · USPC 244/13 (5) · USPC 244/82 (5) · USPC 244/6 (5) · USPC 244/66 (5)
IPCs:
None (255) · IPC B64C39/00 (15) · IPC B64C17/00 (10) · IPC B64B1/00 (7) · IPC B64C33/00 (6) · IPC B64B1/58 (5) · IPC B64C13/00 (4) · IPC B64C23/00 (4) · IPC B64C1/00 (3) · IPC B64C33/02 (3) · IPC B64C3/00 (3) · IPC B64C2700/6295 (2) · IPC B64C27/006 (2) · IPC B64C27/00 (2) · 1 (2) · IPC B64C31/04 (2) · IPC B64F1/06 (2) · IPC B64C27/04 (2) · IPC B64C25/00 (2) · IPC A63G1/00 (2)
CPCs:
None (57) · CPC B64C2700/6295 (29) · CPC B64C17/00 (23) · CPC B64B1/00 (22) · CPC B64C13/00 (18) · CPC B64C39/005 (16) · CPC B64C23/005 (16) · CPC B64C33/02 (14) · CPC B64C39/08 (13) · CPC B64C3/385 (11) · CPC B64C11/36 (7) · CPC B64B1/58 (7) · CPC B64C27/82 (6) · CPC B64C33/00 (6)
First filing:
Citations from after 1930:

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