Helicopter

Details Helicopter Helicopter

1991-08-20

1993-06-29

Chin, Kay H.

Transportation

Aircraft, spacecraft, or fuselage

Vertical takeoff type

D12327, D12326

Patent

active

D03368882

REFERENCES:
patent: D232168 (1974-07-01), Leoni
patent: 3506219 (1970-04-01), Mouille et al.
patent: 4506849 (1985-03-01), Lemont
patent: 5102067 (1992-04-01), Weiner et al.

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