Rigid coaxial rotor unmanned helicopter with auxiliary...

Details Rigid coaxial rotor unmanned helicopter with auxiliary... Rigid coaxial rotor unmanned helicopter with auxiliary...

2006-07-04

2006-07-04

Jackson, Marcus A. (Department: 2916)

Transportation

Aircraft, spacecraft, or fuselage

Vertical takeoff type

Design Patent

active

D0524227

CLAIM:
The ornamental design for a rigid coaxial rotor unmanned helicopter with auxiliary propulsion, as shown and described.

REFERENCES:
patent: D357894 (1995-05-01), Arnold et al.
patent: D361053 (1995-08-01), Whyte et al.
patent: D363054 (1995-10-01), Taylor et al.
patent: D375077 (1996-10-01), Taylor et al.
patent: D388048 (1997-12-01), Taylor et al.
patent: D425853 (2000-05-01), Caporaletti

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