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Forum: Patents
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Stingray 0 1972
No New Posts Nicolas J. Medvedeff convertiplane and related patents
Stingray 1 1580
No New Posts Joseph S. Pecker Aircraft Having Sustaining Rotors
Stingray 0 749
No New Posts S. D. Robins combination airplane helicopter
Stingray 3 1557
No New Posts Durov Dmitry twin-boom tri tilt-rotor
Stingray 0 814
No New Posts Carter Allen Tall V/STOL aircraft
Leela25 2 783
No New Posts Variable chord morphing helicopter rotor
Leela25 0 745
No New Posts Gyrodyne patents
Stingray 14 2685
No New Posts Boeing
=hothorizon= 3 2972
No New Posts Zimmerman Helicopter flying apparatus
Stingray 3 1622
No New Posts Alberto Alvarez Calderon F. 3-rotor twin-boom VTOL aircraft
Stingray 0 1573
No New Posts Haviland Hull Platt's VTOL patents
Stingray 2 2312
No New Posts Douglas Model-828/A?
Stingray 0 1475
No New Posts Sikorsky helicopter-boat
Stingray 0 1513
No New Posts Weir Patents
Ross 0 1381
No New Posts Flying trucks from Handley-Page & Westland.
Ross 0 1546
No New Posts Piasecki patents
Stingray 1 1379
No New Posts Wilford tailsitter VTOL aircraft
Stingray 2 2419
No New Posts Andrew E. Friedrich Supersonic VTOL aircraft
Stingray 0 1269
No New Posts General Electric tail-sitter helicopter-airplane
Stingray 0 1184
No New Posts Henschel Helicopter, 1939
Stingray 0 1203
No New Posts Edward F. Andrews composite helicopter
Stingray 0 1211
No New Posts Dougals tandem rotor helicopter
hesham 0 1163
No New Posts John K. Sanders Aerodynamically stable VTOL aircraft
failcopter67 0 1175
No New Posts Firestone Tire a Rubber Company
=hothorizon= 3 1728
No New Posts Ishida TW-68 Tiltwing patent
Stingray 1 4092
No New Posts Do You Really Need a Patent Attorney?......maybe not!
davh12 4 2218
No New Posts Patent Regs regarding DOD careful all!
davh12 1 1778
No New Posts Recent Development of Rotorcraft Configuration
hesham 1 1981
No New Posts R. D. LEONI / United Aircraft Corporation convertiplane
555 1 1793
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