Number | Date | Country | Kind |
---|---|---|---|
2942673 | Oct 1979 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
2908555 | Grosskopf | Oct 1959 | |
3022141 | Grosskopf | Feb 1962 | |
3985017 | Goldsmith | Oct 1976 | |
4271125 | Leichnitz | Jun 1981 | |
4272479 | Huneke et al. | Jun 1981 |
Entry |
---|
The Merck Index of Chemicals and Drugs--Seventh Edition, Merck & Co., N.J., 1960, p. 950. |