Drilldown: Patents

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Patents > Number of text pages: 6-50000000 & Number of claims: 4-30 & Number of figures: 9-13

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Office:
Inventors:
Edmund Sparmann (5) · None (3) · Everard Richard Calthrop (3) · Louis Brennan (3) · Arthur Henry Edwards (3)
Inventor country:
Applicant person:
None (7) · Edmund Sparmann (5) · Louis Brennan (3) · Everard Richard Calthrop (3) · Arthur Henry Edwards (3)
Applicant is inventor:
Tech fields:
airplane (41) · Stability (35) · Design (25) · frame (23) · wings (20) · Propulsion (18) · None (17) · construction (14) · automatic stability (13) · navigation (13) · LTA (12) · Propellers (12) · rudder (11) · propeller (10) · gyroscope (10) · lift (10) · whole (10) · Subsystem (7) · control (7)
Full specification filed date:
Application number:
None (37)
Granted:
Supplementary to patent:
None (84) · Patent BE-1910-230887 (2) · Patent GB-1909-26034 (2) · Patent GB-1908-4519 (2) · Patent US-1909-1137533 (2) · Patent FR-1908-404631 (2)
Related to aircraft:
Patent agent:
None (29) · Haseltine, Lake & Co. (4) · A. E. White (3) · A. M. & William Clark (3) · None (3) · Munn & Co. (3) · Marks & Clerk (3) · Brandon frères (2) · W. H. Beck & Co. (2) · Michael J. Stark & Sons (2) · H. D. Fitzpatrick & Co. (2) · Browne & Co. (2) · Henry Hughes (2) · Armengaud jeune (2)
National tech categories:
None (66) · FR 6.4 (14) · HU V/h (6) · USPC 244/80 (5) · GB 4 propel & steer (3) · USPC 244/48 (3) · GB 4 framework (3) · GB 4 without buoyant (2) · GB 4 aëroplanes (2) · USPC 244/904 (2)
CPCs:
None (40) · CPC B64C17/00 (14) · CPC B64C3/385 (8) · CPC B64C2700/6218 (7) · CPC B64C13/00 (6) · CPC B64B1/00 (6) · CPC B64C3/00 (5) · CPC B64C17/06 (5) · CPC B64C39/005 (4) · CPC B64C2700/6233 (4) · CPC B64C39/00 (3) · CPC B64C2700/6295 (3) · CPC B64C2700/6256 (3)
First filing:
Citations from after 1930:
Number of text pages:
Number of diagram pages:
Number of figures:

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