Blower attachment for vacuum cleaner
United States Patent 2788541
US Patent References:
Filter structure for vacuum cleaners
- - 2173960

Respirator
- - 2287939


Inventors:
Kemnitz, Warren N.
Publication Date:
04/16/1957
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Assignee:
GEN ELECTRIC
Primary Class:
15/330
Other Classes:
15/246, 285/197, 285/7
International Classes:
A47L5/36; A47L9/24; A47L5/22
Foreign References:
CH173045A