Title:
BASEBALL BAT WITH TRAINING WEIGHT
United States Patent 3521883
Inventors:
Hamilton, Frank G.
Publication Date:
07/28/1970
Assignee:
Frank, Hamilton G.
Vincent, Salvucci H.
Elston, Howard G.
International Classes:
A63B59/06; A63B59/00; A63B69/00; A63B59/06