Transportation – Aircraft – spacecraft – or fuselage – Pusher propeller
Patent
1989-07-25
1991-10-29
Chin, Kay H.
Transportation
Aircraft, spacecraft, or fuselage
Pusher propeller
D12323
Patent
active
D03211665
REFERENCES:
patent: D291216 (1987-08-01), Motts
patent: 2907536 (1959-10-01), Von Zborowski
patent: 2918231 (1959-12-01), Lippisch
patent: 2918232 (1959-12-01), Lippisch
patent: 4838501 (1989-06-01), Judson
patent: 4967983 (1990-11-01), Motts
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