Number | Date | Country | Kind |
---|---|---|---|
11840/72 | Aug 1972 | CH | |
8349/73 | Jun 1973 | CH |
Number | Name | Date | Kind |
---|---|---|---|
3563982 | Bowers | Feb 1971 | |
3825661 | Emmick | Jul 1974 |
Entry |
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Chemical Abstract of German Offen. 2,161,150 (6-1972). |
Chang et al., "Ag. Biol. Chem., vol. 35 (1971) No. 8, pp. 1307-1309. |