Number | Name | Date | Kind |
---|---|---|---|
3214411 | Saunders et al. | Oct 1965 | |
3214489 | Park | Oct 1965 | |
3287442 | Caldwell | Nov 1966 | |
3541183 | Kallert | Nov 1970 | |
4034016 | Baron | Jul 1977 | |
4067927 | Weil | Jan 1978 |
Number | Date | Country |
---|---|---|
2925207 | Apr 1981 | DEX |
2944093 | May 1981 | DEX |
Entry |
---|
Chemical Abstracts, vol. 95:81795z, p. 20, 1981. |