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Patents > Year granted: 1920 - 1929 & Tech fields : Rudder or propeller or propellers

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Office:
Inventors:
None (16) · Jakob Haw (9) · Christian Lorenzen (5) · Pierre Levasseur (4) · Robert Kemp (4) · Anton Flettner (3) · John Edward Thompson (3) · Louis Blériot (3) · William Davey Oddy (3)
Inventor country:
Applicant person:
None (37) · Jakob Haw (6) · Pierre Levasseur (4) · John Edward Thompson (3) · Anton Flettner (3) · William Davey Oddy (3) · Louis Blériot (3)
Applicant is inventor:
Tech fields: (Click arrow to add another value)
Full specification filed date:
Application number:
None (58)
Granted:
Publication date:
Supplementary to patent:
None (87) · Patent DE-1917-305040 (3) · Patent DE-1917-323641 (2) · Patent DE-1916-332540 (2) · Patent CA-1918-196108 (2) · Patent FR-1916-502839 (2) · Patent DE-1915-300200 (2)
Related to aircraft:
Patent agent:
None (74) · Armengaud jeune (5) · Paul Blum (3) · Dom. Casalonga (2) · Weismann et Marx (2) · M. Zerolo (2) · J. Fayollet (2) · Herbert H. Thompson (2) · Émile Bert (2) · E. Wattier (2) · Hippolyte Josse (2)
National tech categories:
None (43) · FR 6.4 (25) · DE 77h.6 (17) · HU V/h (11) · DE 77h.5 (8) · AT 77d (4) · FR 6.2 (3) · NL 62.6 (2) · NL 62 (2) · USPC 244/50 (2)
IPCs:
None (31) · IPC B64C11/20 (11) · IPC B64C11/00 (9) · IPC B64C11/04 (9) · IPC B64C11/36 (5) · IPC B64C13/00 (5) · IPC B64C23/00 (4) · IPC B64D27/00 (4) · IPC B64C11/16 (4) · IPC B64C11/34 (4) · IPC B64C11/22 (3) · IPC B63H1/12 (3) · IPC B64C9/02 (3) · IPC B64C27/04 (2) · IPC B64C11/06 (2) · IPC B64C11/32 (2) · IPC B64C39/00 (2) · IPC B64C11/48 (2) · IPC B64C3/14 (2) · IPC B64C29/00 (2)
CPCs:
None (29) · CPC B64C11/04 (12) · CPC B64C11/20 (8) · CPC B64C13/00 (6) · CPC B64C11/36 (5) · CPC B64C11/00 (4) · CPC B64C23/005 (4) · CPC B64D27/00 (4) · CPC B64C11/205 (4) · CPC B64C11/22 (4) · CPC B64C2700/6274 (3) · CPC B64C9/02 (3) · CPC B63H1/26 (3)
First filing:
Citations from after 1930:
Number of diagram pages:

Showing below up to 131 results in range #1 to #131.

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