United States Patent 3099976
Inventors:
Schwaneke, Fred C.
Sheehan, Edmund J.
Publication Date:
08/06/1963
Assignee:
Watson, Harbaugh D.
International Classes:
B63B15/02; B63B15/00
US Patent References:
| 2643628 | Sailboat construction | | | |
| 2646763 | Boat construction and control of sails | | | |