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Patents > National tech categories : AT 77d or USPC 244/22 or USPC 89/1.1

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Office:
Applicant person:
None (123) · Reinhold Richter (9) · Heinrich Bier (4) · Adalbert Placek (3) · Ludwig Schmidl (3) · Alfred E. Wunderlich (3)
Applicant is inventor:
Tech fields:
Airplane (118) · Frame (95) · LTA (57) · propulsion (54) · flapping (50) · wings (47) · None (46) · design (45) · construction (37) · stability (37) · propeller (35) · navigation (34) · subsystem (33) · Propellers (28) · Aerodynamics (25) · ornithopter (25) · airship (24) · wheels (22) · whole (20) · airfoil (20)
Full specification filed date:
Application number:
None (247)
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 (281) · IPC B64C33/00 (13) · IPC B64C33/02 (10) · IPC B64C3/00 (2) · IPC B64C3/38 (2) · IPC B64C39/00 (2)
First filing:
Citations from after 1930:
Number of text pages:
Number of diagram pages:

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