Citada por|
| US4178654 | 26 Oct 1977 | 18 Dic 1979 | Alfred Mitchell | Floor polishing machines | | US5088151 | 23 Sep 1991 | 18 Feb 1992 | Advance Machine Company | Collection system for a floor polishing machine | | US5974626 | 26 Mar 1997 | 2 Nov 1999 | Nilfisk-Advance, Inc. | Collection system for a floor polishing machine | | US7162771 | 5 May 2003 | 16 Ene 2007 | Alto U.S. Inc. | Floor cleaning machine with dust control apparatus and associate method of use |
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