Transportation – Parts – accessories and attachments for vehicles not... – Propeller
Patent
1989-05-19
1991-05-07
Chin, Kay H.
Transportation
Parts, accessories and attachments for vehicles not...
Propeller
Patent
active
D03167003
REFERENCES:
patent: 2414229 (1947-01-01), Johansen
patent: 3709634 (1971-01-01), Lorenz
patent: 4188906 (1980-02-01), Tachmindji et al.
patent: 4511339 (1985-04-01), Kasschau
Chin Kay H.
Sieberth John F.
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