Number | Date | Country | Kind |
---|---|---|---|
62-53768 | Mar 1987 | JPX | |
63-22621 | Feb 1988 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4304906 | Kang et al. | Dec 1981 | |
4514563 | Fujiyama et al. | Apr 1985 | |
4575551 | Fujiyama et al. | Mar 1986 |
Entry |
---|
Biological Abstracts, Feb. 15, 1983; 75(4); #29141. |