Device for varying curvature of boat keels
United States Patent 2612129
Inventors:
Burch, Loren P.
Publication Date:
09/30/1952
Assignee:
Burch, Loren P.
Other Classes:
114/62, 114/43, 114/83, 114/65R, 114/355
International Classes:
B63B1/32; B63B1/00