Drilldown: Patents

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Patents > Patent agent: None & Assigned to : John A. Roebling's Sons or Vickers Ltd. or Établissements de Dion-Bouton or None & National tech categories : DE 77 or HU V/h or NL 62 & First filing : Yes or None

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Tech fields:
airplane (97) · LTA (72) · design (68) · propulsion (57) · propellers (56) · airship (56) · subsystem (47) · frame (43) · construction (38) · wings (35) · Whole (31) · Stability (30) · aerodynamics (27) · control (24) · steering (19) · navigation (19) · lift (18) · balloon (17) · helicopter (15) · flapping (14)
Full specification filed date:
Application number:
None (136)
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Supplementary to patent:
None (261)
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IPCs:
None (260) · IPC B64C33/02 (7) · IPC B64B1/58 (5) · IPC B64B1/40 (5) · IPC B64C31/06 (4) · IPC B64B1/00 (3) · IPC B64B1/06 (3) · IPC B64C27/04 (3) · IPC B64C11/00 (2) · IPC B64C39/00 (2) · IPC B64C23/00 (2) · IPC B64B1/62 (2)
First filing: (Click arrow to add another value)
Citations from after 1930:
Number of text pages:
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