United States Patent 3114578
Inventors:
Hamilton, Earl F.
Publication Date:
12/17/1963
Assignee:
HAMILTON COSCO INC
Other Classes:
211/182, 297/440.2, 297/452.33, 403/186, 403/230, 403/254
International Classes:
A47C7/24; A47C7/40; A47C23/06; A47C7/02; A47C7/40; A47C23/00