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Patents > Family year: 1910 & Number of diagram pages: 2 & Number of figures: 1-3

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Inventors:
Armin Helfer (2)
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Applicant person:
Armin Helfer (2)
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Tech fields:
None (16) · airplane (8) · stability (7) · frame (4) · subsystem (3) · automatic stability (3) · propeller (3) · helicopter (3) · takeoff (2) · suspension (2) · rudder (2) · propulsion (2) · navigation (2) · wings (2) · design (2)
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Related to aircraft:
CPCs:
None (3) · CPC B64C17/06 (3) · CPC B64C13/00 (3) · CPC B64C17/00 (3) · CPC B64C39/08 (2) · CPC B64C3/14 (2) · CPC B64C2700/6216 (2) · CPC B64C25/62 (2) · CPC B64C2700/6295 (2) · CPC B64C11/006 (2)
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