Title:
WIND-PROPELLED APPARATUS
United States Patent 3487800
US Patent References:
Sailing vessel
- - 2353007

Sailing catamaran
- - 3141435


Inventors:
Schweitzer, Hoyle
Drake, James
Publication Date:
01/06/1970
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Assignee:
Hoyle, Schweitzer
James, Drake
Primary Class:
114/39.150
Other Classes:
114/91
International Classes:
B63B35/79; B63B35/73; B63H9/10; B63B15/02




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