Number | Name | Date | Kind |
---|---|---|---|
3484255 | Okada et al. | Dec 1969 | |
3640723 | Uhlig et al. | Feb 1972 | |
4119733 | Hsieh et al. | Oct 1978 |
Entry |
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Kawai et al., Agricultural and Biological Chemistry vol. 43 (9) 1855-1862 (1979). |
Research Disclosure 19314 May 1980. |
Derwent Abstract 60536, C/35 (1980) of Belgian Pat. No. 882,769. |