Number | Date | Country | Kind |
---|---|---|---|
56-129517 | Aug 1981 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3856829 | Hiraga et al. | Dec 1974 |
Entry |
---|
Chemical Abstracts, vol. 79 (1973), Par. 27596s. |
Chemical Abstracts, vol. 83 (1975), Par. 84928. |
Chemical Abstracts, vol. 83 (1975), Par. 136944g. |