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Patents > Year granted: 1920 - 1929 & Tech fields : Design or steam

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Year granted:
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Inventors:
None (21) · Ernst Heinkel (5) · Robert Kemp (5) · Louis Blériot (4) · Deutsche Flugzeug Werke (3) · John Edward Thompson (3) · Pierre Levasseur (2) · René Caudron (2) · Charles-Édouard-Pierre Gourdou (2) · René-Joseph-Ghislain Straunard (2) · Richard A. Engler (2) · Antoine Cazanave (2) · John Arthur Weis (2) · Jean-Adolphe Leseurre (2)
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Applicant person:
None (31) · Ernst Heinkel (5) · Louis Blériot (4) · John Edward Thompson (3) · Charles-Édouard-Pierre Gourdou (2) · John Arthur Weis (2) · Jean-Adolphe Leseurre (2) · René Caudron (2) · René-Joseph-Ghislain Straunard (2) · Pierre Levasseur (2) · Richard A. Engler (2) · Antoine Cazanave (2)
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None (33)
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Supplementary to patent:
None (56) · Patent FR-1916-493411 (3) · Patent FR-1916-502839 (3) · Patent CA-1918-196108 (2) · Patent DE-1919-319462 (2) · Patent FR-1917-504302 (2)
Related to aircraft:
CPCs:
None (22) · CPC B64C3/00 (10) · CPC B64C11/00 (6) · CPC B64C35/00 (5) · CPC B64C39/00 (5) · CPC B64C2700/6233 (5) · CPC B64C3/18 (4) · CPC B64C23/005 (4) · CPC B64D2700/62692 (3) · CPC B64D27/00 (3) · CPC B64C13/00 (3) · CPC B64C17/00 (3)
First filing:
Cites these patents:
Citations from after 1930:
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