Drilldown: Patents

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Patents > Filing date: 1900 - 1999 & Supplementary to patent : Patent GB-1909-12556 or Patent US-1909-970771 or None & CPCs : CPC B64C2700/6295 or CPC B64C39/005

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None (434) · airplane (120) · frame (77) · stability (56) · propulsion (53) · design (46) · navigation (40) · wings (33) · Rudder (31) · propeller (28) · wheels (27) · construction (26) · aerodynamics (25) · airfoil (24) · whole (23) · aeroplane (19) · lift (19) · Control (18) · propellers (16) · helicopter (14)
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None (440) · None (16) · Munn & Co. (11) · Armengaud jeune (10) · Weismann et Marx (7) · Marks & Clerk (7) · Victor J. Evans (6) · J. Germain (5) · Hyde & Heide (4) · L. Chassevent (4) · Chassevent (4) · Charles Dony (4) · G. Petiau (4) · Dupont et Elluin (3) · Schwab (3) · Boramé et Julien (3) · Joshua R. H. Potts (3) · J. S. Withers & Spooner (3) · C. A. Snow & Co. (3) · E. Blétry (3)
National tech categories:
None (365) · FR 6.4 (125) · USPC 244/45R (45) · USPC 244/13 (31) · USPC 244/20 (17) · USPC 244/9 (11) · USPC 244/70 (11) · USPC 244/90R (9) · USPC 244/87 (8) · USPC 244/119 (8) · USPC 244/91 (7) · USPC 244/48 (7) · FR 6.3 (6)
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