Drilldown: Patents

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Patents > Filing date: 1890 - 1899 & Assigned to: None & Number of figures: 6-8

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Office:
Inventors:
Carl Friedrich Billwiller (3) · Theodor Schneider-Preiswerk (2) · William Cowell Sly (2) · Fritz Alexander Jone (2) · August Riedinger (2) · Burr Frank Barnes (2)
Inventor country:
Applicant person:
None (14) · Carl Friedrich Billwiller (3) · Theodor Schneider-Preiswerk (2) · Fritz Alexander Jone (2) · August Riedinger (2) · William Cowell Sly (2)
Applicant type:
Applicant is inventor:
Tech fields:
LTA (32) · propulsion (24) · Frame (19) · balloon (14) · navigation (12) · Design (9) · car (8) · flapping (8) · propeller (8) · parachute (6) · None (5) · hybrid (5) · kite (5) · rudder (5) · stability (5)
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National tech categories:
DE 77 (18) · None (14) · GB 4 propel & steer (4) · GB 4 without buoyant (4) · GB 4 aëroplanes (3) · HU V/h (3) · DE 77h (3) · CH 12 (2) · USPC 244/26 (2) · USPC 244/3.23 (2) · USPC 244/32 (2) · GB 4 motors (2) · USPC 244/28 (2) · USPC 24/713.8 (2)
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Citations from after 1930:
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