Drilldown: Patents

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Patents > Applicant firm: None & Number of text pages: 3-40 & Number of figures: 4-5

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None (548) · Patent US-1910-1041876 (3) · Patent GB-1911-5162 (3) · Patent DE-1907-214228 (3) · Patent NO-1915-12-15 Carl Alfred Johansson (3) · Patent CH-1910-54251 (3) · Patent CH-1907-41855 (3) · Patent BE-1914-264437 (3) · Patent FR-1910-420958 (3)
Related to aircraft:
National tech categories:
None (284) · FR 6.4 (227) · HU V/h (37) · USPC 244/80 (10) · USPC 244/90R (8) · USPC 244/45R (6) · USPC 244/25 (5) · USPC 244/6 (5) · FR 6.2 (4) · USPC 244/139 (4) · FR 6.3 (4) · USPC 244/20 (4) · USPC 244/233 (4) · USPC 244/234 (4) · USPC 244/66 (4) · USPC 244/60 (4) · AT 77d (4) · AU 90.3 (4) · GB 4 propel & steer (4)
IPCs:
None (319) · IPC B64C17/00 (60) · IPC B64C39/00 (52) · IPC B64C1/00 (49) · IPC B64B1/00 (33) · IPC B64C11/00 (18) · IPC B64C13/00 (16) · IPC B64C27/04 (16) · IPC B64C35/00 (14) · IPC B64C3/00 (12) · IPC B64C25/00 (12) · IPC B64C23/00 (10) · IPC B64C33/02 (9) · IPC B64C3/38 (8) · IPC B64D27/00 (7) · IPC B64C27/00 (7) · IPC B64C33/00 (7) · IPC B64C17/06 (7) · IPC B64B1/58 (7)
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