| Number | Date | Country | Kind |
|---|---|---|---|
| 9308804 | Apr 1993 | GBX | |
| 9318929 | Sep 1993 | GBX |
| Number | Name | Date | Kind |
|---|---|---|---|
| 3682927 | Carissimi et al. | Aug 1972 | |
| 4749406 | Martin | Jun 1988 | |
| 5006534 | Mohrs et al. | Apr 1991 | |
| 5202336 | Mohrs et al. | Apr 1993 | |
| 5212182 | Musser et al. | May 1993 | |
| 5294622 | Dreikorn et al. | Mar 1994 |
| Entry |
|---|
| Chemical Abstracts, vol. 97, 1982, p. 278, AN-18948c. |
| Chemical Abstracts, vol. 90, 1979, p. 136, AN-34849g. |