Vacuum cleaner
United States Patent 2133141

Inventors:
Osmund, Holm-hansen
Publication Date:
10/11/1938
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Assignee:
GEN ELECTRIC
Primary Class:
55/376
Other Classes:
55/315, 55/366, 55/381, 15/DIG.008
International Classes:
A47L5/28; A47L9/10; A47L5/22