United States Patent 2466468
Inventors:
Herbert, Neal Harry
Publication Date:
04/05/1949
Assignee:
Herbert, Neal Harry
Other Classes:
310/103, 241/98, 396/636, 241/184, 241/170, 396/633
International Classes:
A47J43/09; B01F13/08; A47J43/04; B01F13/00