Number | Date | Country | Kind |
---|---|---|---|
43 21 100.3 | Jun 1993 | DEX | |
43 32 025.2 | Sep 1993 | DEX | |
43 34 493.3 | Oct 1993 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
4358271 | Sperner et al. | Nov 1982 | |
4789649 | Abert et al. | Dec 1988 | |
4798536 | Katz | Jan 1989 | |
5308391 | Komma et al. | May 1994 | |
5346866 | Komma et al. | Sep 1994 |
Number | Date | Country |
---|---|---|
2626092 | Dec 1976 | DEX |
Entry |
---|
J. Falbe et al., Rompp Chemie Lexikon, 9. Aufl., pp. 132-135 (1989). |