Number | Date | Country | Kind |
---|---|---|---|
878/98 | May 1998 | AT |
Number | Name | Date | Kind |
---|---|---|---|
5952206 | Giselbrecht et al. | Sep 1999 | |
6150142 | Mukouyama et al. | Nov 2000 |
Number | Date | Country |
---|---|---|
298438 | May 1972 | AT |
0 798 377 | Oct 1997 | EP |
Entry |
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Chemical Abstracts, 238:74403s (1998). |