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Patents > Tech fields : Rudder or None & Number of claims: 4-5

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None (248) · London (4) · Seine (4) · England (2) · Allegheny county, Pennsylvania (2) · Birmingham (2) · Ontario (2) · Pittsburgh (2) · Michigan (2) · PA (2)
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None (55)
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Supplementary to patent:
None (224) · Patent GB-1909-2111 (2) · Patent FR-1911-431862 (2)
Related to aircraft:
Patent agent:
None (50) · Marks & Clerk (11) · Victor J. Evans (10) · None (10) · Brewer & Son (8) · Munn & Co. (7) · Haseltine, Lake & Co. (7) · L. Chassevent (6) · W. P. Thompson & Co. (5) · Armengaud jeune (5) · E. Blétry (5) · C. A. Snow & Co. (4) · Schwab (4) · Herbert Haddan & Co. (4) · A. A. Thornton (3) · James L. Norris (3) · Dupont et Elluin (3) · Paul Caquet (3) · Chassevent (3)
National tech categories:
None (126) · FR 6.4 (55) · USPC 244/45R (6) · USPC 244/101 (3) · USPC 244/80 (3) · USPC 244/100R (3) · DE 77h.5 (3) · USPC 244/48 (3)
IPCs:
None (122) · IPC B64C39/00 (21) · IPC B64C17/00 (17) · IPC B64C23/00 (14) · IPC B64C1/00 (13) · IPC B64C13/00 (12) · IPC B64C35/00 (9) · IPC B64C3/00 (9) · IPC B64C3/38 (9) · IPC B64B1/00 (7) · IPC B64C11/00 (5) · IPC B64C33/02 (3) · IPC B64C25/00 (3) · IPC B64B1/58 (3) · IPC B64C9/00 (3) · IPC B64C9/02 (3) · IPC B64C3/54 (3) · IPC B64C3/18 (3)
CPCs:
None (36) · CPC B64C17/00 (29) · CPC B64C2700/6295 (25) · CPC B64C13/00 (21) · CPC B64C23/005 (19) · CPC B64C3/385 (17) · CPC B64C2700/6274 (13) · CPC B64C39/08 (12) · CPC B64C2700/6256 (12) · CPC B64C39/00 (12) · CPC B64C3/00 (10) · CPC B64C33/02 (8) · CPC B64B1/00 (8) · CPC B64C35/00 (7) · CPC B64C39/005 (6) · CPC B64C2700/6214 (6) · CPC B64C2700/6218 (5)
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