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Patents > Tech fields : hybrid or navigation & Number of claims: 3-7

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None (302) · Patent US-1909-970771 (4) · Patent AT-1912-75092 (3) · Patent FR-1902-328044 (3) · Patent CH-1899-18666 (3)
Related to aircraft:
Patent agent:
None (111) · Munn & Co. (15) · None (12) · Armengaud jeune (12) · Haseltine, Lake & Co. (9) · Marks & Clerk (8) · Lavoix et Mosès (8) · Schwab (6) · Boult, Wade & Tennant (6) · C. A. Snow & Co. (5) · Wheatley & Mackenzie (5) · Victor J. Evans (5) · Herbert Haddan & Co. (4) · W. P. Thompson & Co. (3) · G. de Mestral et F. Harlé (3) · Edward Evans & Co. (3) · L. Chassevent (3) · Knight Bros. (3) · R. S. & A. B. Lacey (3)
National tech categories:
None (97) · FR 6.4 (77) · USPC 244/30 (11) · DE 77 (11) · FR 6.3 (11) · USPC 244/6 (10) · GB 4 propel & steer (8) · DK 77 (7) · AT 77d (7) · USPC 244/22 (7) · USPC 244/66 (6) · USPC 244/70 (6) · USPC 244/51 (6) · USPC 244/26 (6) · HU V/h (6)
IPCs:
None (194) · IPC B64B1/00 (41) · IPC B64C23/00 (17) · IPC B64C39/00 (16) · IPC B64C33/00 (10) · IPC B64C1/00 (9) · IPC B64B1/58 (9) · IPC B64C27/04 (8) · IPC B64C33/02 (7) · IPC B64C17/00 (7) · IPC B64C3/38 (6) · IPC B64C9/00 (4) · IPC B64B1/62 (4) · IPC B64C29/00 (4) · IPC B64C35/00 (4) · IPC B64C13/00 (4) · IPC B64C3/52 (4)
CPCs:
None (90) · CPC B64B1/00 (55) · CPC B64C23/005 (36) · CPC B64C33/02 (17) · CPC B64C39/005 (17) · CPC B64C13/00 (14) · CPC B64C33/00 (13) · CPC B64B1/58 (11) · CPC B64C17/00 (11) · CPC B64C2700/6295 (9) · CPC B64C2700/6274 (9) · CPC B64C35/00 (7) · CPC B64C3/385 (6) · CPC B64C3/52 (5) · CPC B64C9/00 (5) · CPC B64C27/04 (5)
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