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| Number | Title | Issue Date |
| 6840842 | Burnishing pad, burnishing machine equipped with burnishing pad and burnishing method An objective of the present invention is to provide a burnishing pad, capable of removing dirt by burnishing a place (i.e., a dirty point) onto which dirt attaches to impart sufficient luster, and being biodegraded; a burnishing machine equipped with the burnishing ... | 01/11/2005 |
