Number | Date | Country | Kind |
---|---|---|---|
52-157421 | Dec 1977 | JPX | |
52-157422 | Dec 1977 | JPX | |
52-158932 | Dec 1977 | JPX | |
53-36059 | Mar 1978 | JPX |
Number | Date | Country |
---|---|---|
4914644 | JPX |
Entry |
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Ogawa et al., Chem. Abst., vol. 80 (1974) 60035b. |
Rupp et al., Ger. Offen. 2,717,440 (12-01-77), Chem. Abst., vol. 88 (1978) 70494e. |