Number | Name | Date | Kind |
---|---|---|---|
1752184 | Kritchevsky et al. | Mar 1930 | A |
3928252 | Rigler et al. | Dec 1975 | A |
4408997 | Perrig | Oct 1983 | A |
4427566 | Clements | Jan 1984 | A |
5486228 | Miller et al. | Jan 1996 | A |
5601689 | Sacripante et al. | Feb 1997 | A |
5665124 | Jager et al. | Sep 1997 | A |
5707534 | Del Corral et al. | Jan 1998 | A |
5858024 | De Lacharriere et al. | Jan 1999 | A |
Entry |
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www.RIt.com (Rit website), copyright 2003, “The abc's of dyeing” and “Tips for True Color”. |