Number | Date | Country | Kind |
---|---|---|---|
197 15 483 | Apr 1997 | DE |
Number | Name | Date | Kind |
---|---|---|---|
4775637 | Sutherland et al. | Oct 1988 | |
4844613 | Batchelder et al. | Jul 1989 |
Number | Date | Country |
---|---|---|
0 353 937 | Jul 1989 | EP |
0 353 937 | Feb 1990 | EP |
WO 8807202 | Sep 1988 | WO |
Entry |
---|
International Publication No. WO 88/07202, published Sep. 22, 1988. |