Number | Date | Country | Kind |
---|---|---|---|
51-772776 | Jun 1976 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3320180 | Swinehart | May 1967 | |
3402293 | Shambon | Sep 1968 | |
3413235 | Jones et al. | Nov 1968 |
Number | Date | Country |
---|---|---|
1221747 | Jul 1966 | DEX |
53839 | Jan 1966 | PLX |
1154484 | Jun 1969 | GBX |
Entry |
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Murayama et al. "Chem. Abstracts" vol. 81, 1974, 44583U. |