United States Patent 3151910
Publication Date:
10/06/1964
Other Classes:
297/423.200, 297/423.190, 297/423.220, 248/511, 297/188.010, 297/423.260, 297/357, 297/344.260, 114/363
International Classes:
A47C3/18; A47C7/50; A47C9/10; A47C3/00; A47C7/00; A47C9/00