United States Patent 3071799
Inventors:
Ivar, Jepson
Ernstberger, Alfred F.
Wolter, Gilbert R.
Publication Date:
01/08/1963
Other Classes:
15/419, 15/421, 15/368, 15/387
International Classes:
A47L9/04; A47L11/204; A47L11/00
US Patent References:
| 2904817 | Rug tool having a turbine-driven rug brush | | | |
| 2930069 | Turbine driven floor tool | | | |
| 2938225 | Surface cleaning tool | | | |
| 2946080 | Suction operated floor and rug conditioning and cleaning tool | | | |