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Patents > National tech categories : USPC 244/64 or None & Number of claims: 4

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Office:
Inventor location:
None (328) · England (8) · London (5) · Budapest (3) · Pittsburgh (3) · Pennsylvania (3) · PA (3) · New York (3) · Yorkshire (3) · Allegheny county, Pennsylvania (3)
Applicant is inventor:
Tech fields:
airplane (83) · None (60) · stability (49) · construction (46) · frame (45) · control (38) · wings (36) · propulsion (36) · LTA (34) · design (33) · propeller (23) · propellers (21) · military (18) · aerodynamics (18) · balloon (17) · automatic stability (16) · navigation (15) · subsystem (14) · marine (13)
Full specification filed date:
Application number:
Granted:
Supplementary to patent:
None (298) · Patent US-1914-1157636 (2) · Patent HU-1901-24148 (2) · Patent FR-1916-502839 (2)
Related to aircraft:
Patent agent:
None (46) · Marks & Clerk (35) · Haseltine, Lake & Co. (23) · None (16) · Boult, Wade & Tennant (14) · W. P. Thompson & Co.‎ (10) · Brewer & Son (9) · Abel & Imray (9) · Munn & Co. (7) · Wheatley & Mackenzie (7) · Herbert Haddan & Co. (6) · G. F. Redfern & Co. (5) · Browne & Co. (5) · J. S. Withers & Spooner (5) · Phillips & Leigh (4) · J. D. Roots & Co. (4) · A. M. & William Clark (4)
National tech categories: (Click arrow to add another value)
IPCs:
None (140) · IPC B64C39/00 (25) · IPC B64C1/00 (21) · IPC B64C17/00 (20) · IPC B64B1/00 (16) · IPC B64C3/00 (15) · IPC B64C13/00 (14) · IPC B64C35/00 (12) · IPC B64C3/38 (11) · IPC B64C23/00 (11) · IPC B64C11/00 (7) · IPC B64C3/18 (7) · IPC B64C17/06 (6) · IPC B64C27/04 (5) · IPC B64C11/16 (5) · IPC B64C3/54 (4) · IPC B64C25/00 (4) · IPC B64C3/48 (4) · IPC B64C11/04 (4) · IPC B64B1/58 (4)
CPCs:
None (45) · CPC B64C17/00 (26) · CPC B64B1/00 (22) · CPC B64C13/00 (17) · CPC B64C3/00 (17) · CPC B64C39/00 (16) · CPC B64C2700/6295 (16) · CPC B64C2700/6256 (15) · CPC B64C23/005 (13) · CPC B64C3/385 (11) · CPC B64C2700/6235 (10) · CPC B64C2700/6274 (10) · CPC B64C11/006 (10) · CPC B64C35/00 (10) · CPC B64C11/343 (7) · CPC B64C2700/6218 (6) · CPC B64C17/06 (6) · CPC B64B1/58 (6) · CPC B64C2700/6281 (6) · CPC B64C39/005 (6)
First filing:
Citations from after 1930:
Number of claims:
Number of diagram pages:

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