Helicopter

Details Helicopter Helicopter

1993-09-20

1995-05-02

Chin, Kay H.

Transportation

Aircraft, spacecraft, or fuselage

Vertical takeoff type

D12328

Patent

active

D03578941

REFERENCES:
patent: D239710 (1976-04-01), Garrison
patent: D242338 (1976-11-01), Gilday
patent: 4809930 (1989-03-01), Ballerio et al.
patent: 5093677 (1992-03-01), McMahon
patent: 5209430 (1993-05-01), Wilson et al.

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