Wall fitting and control for vacuum cleaning systems
United States Patent 3076068
US Patent References:
/1255175.html
- - 1255175

Vacuum cleaning apparatus
- - 2877313


Inventors:
Racklyeft, Carl E.
Publication Date:
01/29/1963
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Assignee:
Racklyeft, Carl E.
Primary Class:
200/61.600
Other Classes:
439/195, 55/DIG.008, 439/536, 439/192, 15/314
International Classes:
A47L5/38; D06F58/28; A47L5/22