Helicopter

Details Helicopter Helicopter

1994-08-23

1995-08-08

Chin, Kay H.

Transportation

Aircraft, spacecraft, or fuselage

Vertical takeoff type

D12328

Patent

active

D03610535

REFERENCES:
patent: D183752 (1958-10-01), Knapp
patent: D239930 (1976-05-01), Ulisnik
patent: D270151 (1983-08-01), Whyte
patent: D278227 (1985-04-01), Johnston, Jr.
patent: 5377934 (1995-01-01), Hill

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