Number | Date | Country | Kind |
---|---|---|---|
8819059 | Aug 1988 | GBX |
Number | Name | Date | Kind |
---|---|---|---|
3474099 | Renz et al. | Oct 1969 | |
3539573 | Schmutz et al. | Nov 1970 | |
3758479 | Schmutz et al. | Sep 1973 | |
3813395 | Nakanishi et al. | May 1974 | |
3951981 | Safir | Apr 1976 | |
3985750 | Protiva et al. | Oct 1976 | |
4115568 | Chakrabarti et al. | Sep 1978 | |
4115574 | Chakrabarti et al. | Sep 1978 | |
4404137 | Chakrabarti et al. | Sep 1983 | |
4431589 | Chakrabarti et al. | Feb 1984 |
Entry |
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S. Rajapa and R. Sreenivasan, Indian J. Chem., 14B, Jun. 1976, pp. 394-396. |
M. Sittig, Pharmaceutical Manufacturing Encyclopedia, 2nd ed., vol. 1, 1988, pp. 387-388. |