Drilldown: Patents

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Patents > Publication date: 1920 & Assigned to: None & Number of text pages: 3-5

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Year granted:
Office:
Inventors:
None (17) · Alexander Albert Holle (2) · Franz Schneider (2) · Federico Caproni (2) · Émile Letord (2) · Emil Schimanek (2)
Inventor country:
Applicant person:
None (21) · Emil Schimanek (2) · Alexander Albert Holle (2) · Émile Letord (2)
Applicant is inventor:
Tech fields:
airplane (26) · construction (17) · design (17) · frame (15) · wings (12) · propellers (10) · aerodynamics (8) · motors (7) · military (6) · stability (6) · lift (6) · propulsion (5) · LTA (5) · airship (5) · sustentation (4) · propeller (4) · Control (4) · whole (4) · biplane (4)
Full specification filed date:
Application number:
None (24) · 510212D (2)
Granted:
Related to aircraft:
Assigned to: (Click arrow to add another value)
IPCs:
None (21) · IPC B64C17/00 (4) · IPC B64C1/00 (3) · IPC B64C3/00 (3) · IPC B64D27/00 (2) · IPC B64C39/00 (2) · IPC B64C11/22 (2)
CPCs:
None (21) · CPC B64C17/00 (5) · CPC B64C3/00 (3) · CPC B64C39/00 (2) · CPC B64C31/02 (2) · CPC B64C11/22 (2) · CPC B64D27/00 (2)
First filing:
Cites these patents:
Citations from after 1930:
Number of text pages:
Number of diagram pages:

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