CPC B64C27/52
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CPC B64C27/52 is a patent class for xyz.[1][2]
References
This wiki has 9 patents in category "CPC B64C27/52".
Patents in category CPC B64C27/52
- Patent GB-1917-112685 (Inventors: Robert Oscar BLAYNEY, Filing date: 1917-02-10)
- Patent FR-1902-320866 (English title: aviator, Inventors: Josef Seiberl, Filing date: 1902-05-03)
- Patent FR-1906-364355 (English title: Aeroplanes or flying machines, Inventors: Edwin Richard Mumford, Supplementary to patent: Patent GB-1905-3214, Filing date: 1906-02-07)
- Patent FR-1906-367532 (English title: Helicopter, Inventors: Georges-Pierre-Joseph Brousseau, Filing date: 1906-06-15)
- Patent FR-1906-369683 (English title: Helicopter, Inventors: Désiré Sival, Filing date: 1906-08-30)
- Patent FR-1909-398288 (English title: Aerial helicopter, Inventors: George Alphonzo Metcalf, Filing date: 1909-01-05)
- Patent GB-1909-2540 (English title: Aerial Machines, Inventors: Robert Pearce Elworthy, Filing date: 1909-02-02)
- Patent US-1911-1040136 (Inventors: Nat Elmer Brown, Filing date: 1911-08-03)
- Patent FR-1915-476168 (English title: Flying Machine, Inventors: Marius-Antoine Jacquet, Filing date: 1914-09-05)
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