United States Patent 3469576
Inventors:
Smith, Henry M.
Everts, Jack A.
Publication Date:
09/30/1969
Assignee:
Henry, Smith M.
Jack, Everts A.
International Classes:
A43B13/20; A43B13/40; A43B17/03; A43B13/18; A43B13/38; A43B17/00; A43B3/04; A43B13/20