United States Patent 3431023
Inventors:
Anderson, Paul G.
Publication Date:
03/04/1969
Assignee:
Anderson, Paul G.
Freeman, Parsons A.
Floyd, Wells H.
Other Classes:
297/452.65, 297/DIG.3
International Classes:
A47C1/16; A47C27/22; A47C1/00; A47C27/22; (IPC1-7): A47C7/16; A47C27/12; A47C31/00