Number | Name | Date | Kind |
---|---|---|---|
2512697 | Grotenhuis | Jun 1950 | |
3256236 | Herman et al. | Jun 1966 | |
3867326 | Rivin et al. | Feb 1975 | |
4390648 | Stacy | Jun 1983 | |
5780537 | Smith et al. | Jul 1998 |
Number | Date | Country |
---|---|---|
1349864 | Jan 1961 | FRX |
1475001 | Feb 1966 | FRX |
Entry |
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Chemical Abstracts, vol. 99, No. 22; Nov. 28, 1983, X)002113392 and JP 58 061107. |
European Search Report. |