Drilldown: Patents

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Patents > Number of diagram pages: 2-20 & Number of figures: None

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Office:
Inventors:
Erik Emanuel Lindkvist (2) · Albert Hugo Friedel (2)
Applicant person:
None (28)
Applicant is inventor:
Tech fields:
propulsion (19) · LTA (19) · airplane (18) · navigation (14) · stability (14) · frame (14) · propeller (14) · None (13) · design (8) · marine (7) · dirigible (6) · construction (5) · airfoil (5) · balloon (5)
Full specification filed date:
Application number:
None (36)
Granted:
Related to aircraft:
Patent agent:
None (57) · Armengaud jeune (2) · De Bonge (2)
National tech categories:
None (35) · FR 6.4 (26) · USPC 244/78.1 (3) · USPC 244/104R (2) · USPC 244/22 (2) · CH 129b (2) · DE 77 (2) · USPC 416/163 (2) · FR 6.3 (2) · USPC 244/100R (2)
IPCs:
None (46) · IPC B64B1/00 (7) · IPC B64C39/00 (5) · IPC B64C3/38 (4) · IPC CPC B64C13/00 (3) · IPC B64C33/02 (3) · IPC B64B1/58 (3) · IPC B64C33/00 (2) · IPC B64C39/08 (2) · IPC B64C27/04 (2) · IPC B64C11/00 (2)
CPCs:
None (24) · CPC B64B1/00 (9) · CPC B64C13/00 (7) · CPC B64C2700/6295 (6) · CPC B64C33/02 (6) · CPC B64C3/385 (5) · CPC B64B1/58 (4) · CPC B64C11/006 (4) · CPC B64C39/008 (3) · CPC B64C39/00 (2) · CPC B64C39/08 (2) · CPC B64C29/0025 (2) · CPC B64C33/00 (2) · CPC B64C17/00 (2) · CPC Y02E10/74 (2)
First filing:
Cites these patents:
Citations from after 1930:
Number of diagram pages:
Number of figures:

Showing below up to 103 results in range #1 to #103.

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