Number | Name | Date | Kind |
---|---|---|---|
3503931 | Radlmann et al. | Mar 1970 | |
3563951 | Radlmann et al. | Feb 1971 | |
4540748 | Matzner | Sep 1985 | |
4608404 | Gardner et al. | Aug 1986 | |
4656207 | Jabloner et al. | Apr 1987 | |
4695612 | Takekoshi et al. | Sep 1987 | |
4746718 | Gardner et al. | May 1988 | |
4789722 | Jabloner et al. | Dec 1988 |
Number | Date | Country |
---|---|---|
1388650 | Jan 1965 | FRX |
Entry |
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Houben-Weyl, Nitrogen Compounds-II (11/1), pp. 32-33, Georg Thieme Verlag, Stuttgart, 1957. |