Cleaning apparatus
United States Patent 2549181
US Patent References:
/0983139.html
- - 0983139

Gas and oil separator
- - 1512358

Suction cleaner
- - 2114780

Vacuum cleaner
- - 2219567

Vacuum cleaner
- - 2327181


Inventors:
Luther, Durham
Publication Date:
04/17/1951
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Assignee:
Luther, Durham
Primary Class:
96/406
Other Classes:
15/323, 15/353, 137/112, 55/320, 15/321, 55/DIG.003, 55/312
International Classes:
A47L7/00
Foreign References:
NL42636C