Number | Date | Country | Kind |
---|---|---|---|
89 05094 | Apr 1989 | FRX |
Number | Name | Date | Kind |
---|---|---|---|
4387018 | Cooke et al. | Jun 1983 | |
4540837 | Schmidhamer et al. | Sep 1985 |
Number | Date | Country |
---|---|---|
16850 | Apr 1974 | JPX |
0038342 | Mar 1980 | JPX |
Entry |
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Chemical Patents Index, Basic Abstracts Journal, semaine 8748, 3 fevrier 1988, section C, resume No. 87-337210/48. |