Number | Date | Country | Kind |
---|---|---|---|
637/91 | Mar 1991 | CHX |
Number | Name | Date | Kind |
---|---|---|---|
3630987 | Thoma et al. | Dec 1971 | |
3755443 | Sheppard et al. | Aug 1973 |
Number | Date | Country |
---|---|---|
3330190A | Mar 1985 | DEX |
Entry |
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Lipatov et al., CA 111:197297s (Abstract only, also attached is CAS Search copy), 1989. |
Chem. Abstract, vol. 102, No. 20, CA 168277u, 1985. |
Chem. Abstract, vol. 103, No. 12 CA 89053k, 1985. |