Number | Date | Country | Kind |
---|---|---|---|
42 35 911.2 | Oct 1992 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
4837023 | Eibl | Jun 1989 | |
5008294 | Jordon | Apr 1991 | |
5049552 | Eibl | Sep 1991 | |
5153179 | Eibl | Oct 1992 |
Number | Date | Country |
---|---|---|
0225608 | Dec 1986 | EPX |
0419998 | Sep 1990 | EPX |
3343530 | Jun 1985 | DEX |
Entry |
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Kirk-Othmer `Encyclopedia of Chemical Technology`, Third Edition vol. 6, John Wiley & Sons, 1979. |
German Office Action, May 17, 1993. |
Derwent Abstract, 1992. |