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Patents > National tech categories : AT 77d or GB 4 propel or USPC 244/22

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Office:
Applicant person:
None (129) · Reinhold Richter (9) · Heinrich Bier (4) · Alfred E. Wunderlich (3) · Ludwig Schmidl (3)
Applicant is inventor:
Tech fields:
airplane (120) · frame (95) · LTA (58) · Propulsion (55) · flapping (49) · wings (48) · design (45) · stability (38) · construction (37) · propeller (36) · subsystem (35) · navigation (34) · Propellers (29) · None (25) · aerodynamics (25) · Airship (24) · ornithopter (23) · wheels (22) · whole (21) · airfoil (21)
Full specification filed date:
Application number:
None (246)
Granted:
Publication date:
Supplementary to patent:
None (228) · Patent AT-1912-64662 (2) · Patent DE-1908-221549 (2) · Patent DE-1912-08-27 AGO Flugzeugwerke G. m. b. H. (2) · Patent IT-1910-10-17 Carlo Navaro (2)
Related to aircraft:
National tech categories: (Click arrow to add another value)
IPCs:
None (276) · IPC B64C33/00 (15) · IPC B64C33/02 (11) · IPC B64C39/00 (2) · IPC B64C3/38 (2) · IPC B64C3/00 (2)
First filing:
Citations from after 1930:
Number of text pages:
Number of diagram pages:

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