Transportation – Rail vehicle – Element or attachment
Patent
1977-06-21
1981-04-07
Douglas, Alan P.
Transportation
Rail vehicle
Element or attachment
D1206
Patent
active
D02588137
REFERENCES:
Sailboat Design, by Gougeon & Knoy, Collier Books, .COPYRGT.1973, p. 51, Round Bottom Boat Hull on page.
Sail, Nov. 1975, p. 77, Sailboat on page.
Debottlenecking Limited
Douglas Alan P.
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