Number | Name | Date | Kind |
---|---|---|---|
2317843 | Backlund | Apr 1943 | A |
2671920 | Finnell | Mar 1954 | A |
2999258 | Berberian | Sep 1961 | A |
3381326 | Dolan et al. | May 1968 | A |
3623177 | Pack | Nov 1971 | A |
4186459 | Wulff | Feb 1980 | A |
4339840 | Monson | Jul 1982 | A |
4391548 | Malish | Jul 1983 | A |
4510643 | Kitada | Apr 1985 | A |
5438728 | Kubes et al. | Aug 1995 | A |
5477580 | Buysse | Dec 1995 | A |
5517715 | Monson | May 1996 | A |
5522114 | Allison | Jun 1996 | A |
5575710 | Kramer | Nov 1996 | A |
5587021 | Hoersch et al. | Dec 1996 | A |
5623743 | Burgoon et al. | Apr 1997 | A |
5711051 | Roden | Jan 1998 | A |
5865374 | Barta et al. | Feb 1999 | A |
6052854 | Besel et al. | Apr 2000 | A |
Number | Date | Country |
---|---|---|
640875 | Jan 1937 | DE |
2042331 | Sep 1980 | GB |
256323 | Feb 1927 | IT |
Entry |
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Thorne Electric Company, Koblenz Operation Instructions-The Cleaning Machine. |
The Malish Corporation, Malish Brush Catalog, 1998. |