Number | Date | Country | Kind |
---|---|---|---|
8205842 | Feb 1982 | GBX | |
8230800 | Oct 1982 | GBX |
Number | Date | Country |
---|---|---|
0001914 | May 1979 | EPX |
87953 | Sep 1983 | EPX |
Entry |
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Weast, R. C., Handbook of Chem. and Physics, 55th Ed., C-50-C51, 1974-1975, CRC Press, Cleveland, Ohio. |
Chemical Abstract 91:91504k, Munekata et al. |