Number | Name | Date | Kind |
---|---|---|---|
3342828 | Vorobjeva | Sep 1967 | |
4238386 | Babler | Dec 1980 | |
4250079 | Babler | Feb 1981 | |
4588576 | David | May 1986 | |
4929279 | Hays | May 1990 | |
5362780 | Babler et al. | Nov 1994 |
Number | Date | Country |
---|---|---|
227779 | Nov 1985 | CSX |
0544441 | Nov 1992 | EPX |
63-305172 | Dec 1988 | JPX |
Entry |
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W. Herbst & K. Hunger, Industrial Organic Pigments, New York: VCH Publishers Inc. 1993 (month unavailable) pp. 205-207. |