Number | Date | Country | Kind |
---|---|---|---|
54-94180 | Jul 1979 | JPX | |
55-30312 | Mar 1980 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
4126625 | Yoshina et al. | Nov 1978 |
Number | Date | Country |
---|---|---|
1199781 | Sep 1965 | DEX |
1025563 | Apr 1965 | GBX |
Entry |
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Chem. Abstracts, vol. 34, No. 3 (1940), 757-758. |
Chem. Abstracts, vol. 60, No. 1 (1964), 486d. |