Number | Date | Country | Kind |
---|---|---|---|
61-132696 | May 1987 | JPX |
Number | Date | Country |
---|---|---|
63-104986 | May 1988 | JPX |
Entry |
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Patent Abstracts of Japan, Japanese Application 59-44913 (1985). |
Chemical Abstracts, Formula Index, Jul.-Dec., 1987, p. 3424F, col. 1, lines 31-34. |
Chemical Abstracts, vol. 52, C. A. Grob et al., Abstract 7202h-7204e (1958). |
Chemical Abstracts, vol. 107, T. Ogawa et al., Abstract 154687u (1987). |