Number | Date | Country | Kind |
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9325113 | Dec 1993 | GBX |
Number | Name | Date | Kind |
---|---|---|---|
3734914 | Lorenz et al. | May 1973 | |
3941772 | Ploger et al. | Mar 1976 | |
4876339 | Blum et al. | Oct 1989 |
Number | Date | Country |
---|---|---|
332068 | Sep 1989 | EPX |
121644 | Aug 1976 | DEX |
2541981 | Mar 1977 | DEX |
4114586 | Nov 1992 | DEX |
1451865 | Oct 1976 | GBX |
Entry |
---|
Chem. Abstracts, vol. 118(9)abst No. 80827t Mar. 1, 1993. |
Chem. Abstracts, vol. 112(9)abst. No. 77540-Q Feb. 26, 1990. |
Chem. Abstracts, vol. 87(7)abst. No. 53,437-a Aug. 15, 1977. |