Number | Date | Country | Kind |
---|---|---|---|
55-23265 | Feb 1980 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3882061 | Bontinck et al. | May 1975 | |
4120844 | Meyer et al. | Oct 1978 | |
4261880 | Fujii et al. | Apr 1981 |
Number | Date | Country |
---|---|---|
731236 | Mar 1966 | CAX |
50-21045 | Jun 1975 | JPX |
Entry |
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Chemical Abstracts, vol. 77, No. 12, Sep. 18, 1972, Item 76067n. |