Drilldown: Patents

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Patents > Filing date: July 1911 & Supplementary to patent: None

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None (3) · Heinrich Hildebrand (2)
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None (9) · Heinrich Hildebrand (2)
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Tech fields:
None (23) · stability (12) · airplane (12) · propulsion (7) · Design (5) · subsystem (4) · propeller (4) · navigation (4) · frame (4) · wings (4) · automatic stability (4) · piloting (3) · LTA (3) · aerodynamics (3) · construction (3) · control (3) · aviation (3) · springs (3) · parachute (3)
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CPCs:
CPC B64C17/00 (10) · None (6) · CPC B64C2700/6295 (6) · CPC B64C39/00 (5) · CPC B64C2700/6274 (4) · CPC B64C23/005 (4) · CPC B64C3/385 (3) · CPC B64C2700/6218 (3) · CPC B64C33/02 (2) · CPC B64C23/00 (2) · CPC B64C11/48 (2) · CPC B64C39/08 (2) · CPC B64B1/00 (2)
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