Drilldown: Patents

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Patents > Office: US & Grant date: 1900 - 1999 & Number of diagram pages: 3-4

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Office: (Click arrow to add another value)
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Tech fields:
airplane (144) · frame (123) · None (119) · stability (109) · propulsion (86) · navigation (81) · propeller (77) · LTA (62) · rudder (58) · helicopter (41) · wheels (38) · hybrid (35) · flapping (32) · safety (31) · landing (30) · takeoff (28) · construction (28) · wings (27) · design (27) · control (27)
Full specification filed date:
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Supplementary to patent:
None (523) · Patent US-1912-1081794 (2)
Related to aircraft:
Assigned to:
None (500) · Moteurs Salmson (2) · Curtiss Aeroplane and Motor Corporation (2) · Curtiss Aeroplane & Motor Corporation (2) · Haskelite Manufacturing Corporation (2)
National tech categories:
None (119) · USPC 244/80 (29) · USPC 244/90R (22) · USPC 244/22 (21) · USPC 244/6 (19) · USPC 244/48 (19) · USPC 244/45R (17) · USPC 244/35R (16) · USPC 244/119 (15) · USPC 244/66 (13) · USPC 244/233 (12) · USPC 244/139 (10) · USPC 244/46 (10) · USPC 244/100R (10) · USPC 244/51 (10) · USPC 244/113 (10) · USPC 244/30 (9) · USPC 244/20 (9)
IPCs:
None (415) · IPC B64B1/00 (19) · IPC B64C39/00 (17) · IPC B64C3/00 (15) · IPC B64C13/00 (12) · IPC B64C3/38 (7) · IPC B64C17/00 (7) · IPC B64C33/00 (7) · IPC B64C25/00 (5) · IPC B64C1/00 (4) · IPC B64C29/00 (4) · IPC B64C27/04 (3) · IPC B64C31/00 (3) · IPC CPC B64C13/00 (3) · IPC B64C27/00 (3)
CPCs:
CPC B64C13/00 (47) · CPC B64C17/00 (44) · CPC B64C23/005 (43) · CPC B64B1/00 (40) · CPC B64C39/005 (32) · CPC B64C3/385 (30) · CPC B64C33/02 (29) · CPC B64C2700/6295 (24) · CPC B64C39/08 (18) · CPC B64C3/14 (14) · CPC B64C3/00 (11) · CPC B64C11/006 (11) · CPC B64C35/00 (10) · CPC B64C27/82 (10) · CPC B64C9/00 (10) · CPC B64C3/40 (8) · CPC B64C13/24 (7) · CPC B64C33/00 (7)
First filing:
Citations from after 1930:
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