Number | Date | Country | Kind |
---|---|---|---|
3321517 | Jun 1983 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3135808 | Robeson et al. | Jun 1964 | |
3876706 | Levanevsky | Apr 1975 | |
4036888 | Couder et al. | Jul 1977 | |
4122290 | Immel et al. | Oct 1978 | |
4233247 | Immel et al. | Nov 1980 | |
4247485 | Immel et al. | Jan 1981 | |
4408079 | Merger et al. | Oct 1983 |
Number | Date | Country |
---|---|---|
739364 | Mar 1970 | BEX |
1044694 | Nov 1953 | FRX |
2385670 | Mar 1978 | FRX |
100015 | Jan 1973 | JPX |
Entry |
---|
Bertilskold et al., "Acta Chemica Scand.", vol. 25, (1971), pp. 2211-2216. |