Number | Date | Country | Kind |
---|---|---|---|
2404047 | Jan 1974 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
2311008 | Tucker | Feb 1943 | |
3293176 | White | Dec 1966 | |
3725290 | Nelson et al. | Apr 1973 |
Number | Date | Country |
---|---|---|
1447188 | Jun 1966 | FRX |
Entry |
---|
Chem. Abs., 1968, vol. 68, pp. 40559z. |
Chem. Abs., 1970, vol. 73, pp. 28779s. |