Number | Date | Country | Kind |
---|---|---|---|
3705410 | Feb 1987 | DEX |
Number | Date | Country |
---|---|---|
60-258143 | Dec 1985 | JPX |
61-36244 | Feb 1986 | JPX |
Entry |
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Vysochin et al, Chemical Abstracts, vol. 71, No. 112563h (1969). |
Patent Abstracts of Japan, Band 10, No. 131 (C-346) [2188], 15. Mai 1986; & JP-A-60 258 143 (Nippon Shokubai Kagaku Kogyo K.K.) 20-12-1985. |