Drilldown: Patents

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Patents > Year granted: 1920 - 1929 & Tech fields : design or lift & Supplementary to patent: None

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Office:
Inventors:
None (9) · Robert Kemp (3) · Ernst Heinkel (3) · John Arthur Weis (3) · Richard A. Engler (2) · Pierre Levasseur (2) · Alexander Albert Holle (2)
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Applicant person:
None (15) · Ernst Heinkel (3) · John Arthur Weis (3) · Alexander Albert Holle (2) · Richard A. Engler (2) · Pierre Levasseur (2)
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None (19)
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Related to aircraft:
CPCs:
None (9) · CPC B64C3/00 (7) · CPC B64C11/00 (4) · CPC B64C3/56 (3) · CPC B64C2700/6233 (3) · CPC B64D27/00 (3) · CPC B64C3/18 (3) · CPC B64C23/005 (2) · CPC B64C33/00 (2) · CPC B64C3/50 (2) · CPC B64C11/14 (2) · CPC B64C11/20 (2) · CPC B64C13/00 (2) · CPC B64D2700/62692 (2)
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Cites these patents:
Citations from after 1930:
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