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Patents > IPCs: IPC B64C11/00 & Number of figures: 5-9

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Office:
Inventors:
Jan Jaakson (3) · Édouard-Jean Bigourdan (2) · Hermann Ruthenberg (2) · Heinrich Hildebrand (2) · Ernest Abington Vessey (2) · None (2) · Vincent Wisniewski (2) · Alfred E. Wunderlich (2)
Inventor country:
Applicant person:
Jan Jaakson (3) · Édouard-Jean Bigourdan (2) · Hermann Ruthenberg (2) · Heinrich Hildebrand (2) · Ernest Abington Vessey (2) · None (2) · Alfred E. Wunderlich (2) · Vincent Wisniewski (2)
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Tech fields:
propulsion (17) · propellers (16) · Design (8) · None (7) · Airplane (7) · propeller (5) · aerodynamics (5) · marine (5) · navigation (4) · Wings (4) · aerial propellers (4) · ascension (3) · hydrodynamics (3) · helicopter (3) · stability (3) · Subsystem (3) · energy (3) · LTA (3) · Airship (3) · aerial propeller (3)
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None (2)
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Citations from after 1930:
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