Drilldown: Patents

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Patents > Grant date: 1890 - 1899 & Number of diagram pages: 2 & Number of figures: 3-8

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Office:
Inventors:
William Cowell Sly (2) · Joseph Hofmann (2) · Carl Friedrich Billwiller (2) · Thomas Mortimer Crepar (2)
Inventor country:
Applicant person:
None (12) · Carl Friedrich Billwiller (2) · Joseph Hofmann (2) · William Cowell Sly (2)
Applicant type:
Applicant is inventor:
Tech fields:
LTA (19) · propulsion (14) · frame (10) · navigation (7) · balloon (6) · None (5) · propeller (5) · glider (5) · car (5) · flapping (5) · design (4) · Windmill (4) · stability (4) · parachute (4) · marine (4) · hybrid (4)
Full specification filed date:
Granted:
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Related to aircraft:
National tech categories:
None (15) · GB 4 propel & steer (5) · GB 4 without buoyant (4) · DE 77 (3) · USPC 244/64 (2) · USPC 244/99 (2) · USPC 416/116 (2) · USPC 416/98 (2) · USPC 180/220 (2) · GB 4 aëroplanes (2) · USPC 244/32 (2)
CPCs:
None (13) · CPC B64C11/48 (6) · CPC B64B1/00 (5) · CPC B64C27/54 (5) · CPC B64B1/40 (3) · CPC B63H5/10 (3) · CPC F03D3/00 (2) · CPC B64C11/006 (2) · CPC Y02E10/74 (2) · CPC Y02E10/72 (2) · CPC B64C31/04 (2) · CPC F03D1/025 (2)
First filing:
Cites these patents:
Citations from after 1930:
Number of text pages:
Number of diagram pages:

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