Propeller blade

Details Propeller blade Propeller blade

1990-04-03

1992-06-16

Walsh, Donald P.

Machines not elsewhere specified

Engine

Element or attachment

D12214

Patent

active

D03270742

REFERENCES:
patent: D200986 (1965-04-01), Wojciechowski et al.
patent: 2709035 (1955-05-01), Schmidt
patent: 3173497 (1965-03-01), Cesare
patent: 4519786 (1985-05-01), Wainauski et al.
patent: 4630787 (1986-12-01), Middlebrook

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