Referenced by|
| US4146944 | 19 Aug 1977 | 3 Apr 1979 | General Signal Corporation | Carpet cleaning machine | | US4167799 | 10 May 1978 | 18 Sep 1979 | | Carpet cleaning machine | | US4462137 | 3 Jan 1983 | 31 Jul 1984 | Shop-Vac Corporation | Electric vacuum cleaner | | US4800615 | 3 Apr 1987 | 31 Jan 1989 | The Scott Fetzer Company | Wet/dry vac | | US4809396 | 29 Jun 1987 | 7 Mar 1989 | | Combination vacuum and solution-dispensing apparatus | | US4858269 | 25 Jan 1989 | 22 Aug 1989 | The Scott Fetzer Company | Wet/dry vac | | US5473792 | 4 Jan 1995 | 12 Dec 1995 | Rug Doctor, L.P. | Steam cleaning machine | | US5513415 | 20 Jan 1995 | 7 May 1996 | Rug Doctor, L.P. | Steam cleaning device | | US5579555 | 18 Mar 1996 | 3 Dec 1996 | The National Super Service Company | Squeegee assembly for floor cleaning machine | | US6192548 | 10 Mar 2000 | 27 Feb 2001 | Bissell Homecare, Inc. | Upright extraction cleaning machine with flow rate indicator |
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