Number | Date | Country | Kind |
---|---|---|---|
100 37 549 | Aug 2000 | DE |
Number | Name | Date | Kind |
---|---|---|---|
4192785 | Chen et al. | Mar 1980 | A |
4253460 | Chen et al. | Mar 1981 | A |
4938835 | Ludwig | Jul 1990 | A |
5122219 | Ludwig | Jun 1992 | A |
6180229 | Becker et al. | Jan 2001 | B1 |
Number | Date | Country |
---|---|---|
648 497 | Mar 1985 | CH |
28 25 195 | Dec 1978 | DE |
42 31 743 | Mar 1994 | DE |
198 06 609 | Aug 1999 | DE |
0 356 777 | Mar 1990 | EP |
0 384 278 | Aug 1990 | EP |
0 565 133 | Oct 1993 | EP |
0 622 127 | Nov 1994 | EP |
0 675 183 | Oct 1995 | EP |
WO 8803432 | Mar 1988 | WO |
Entry |
---|
English-language abstract of DE 4 231 743, dated Mar. 24, 1994. |
English-language abstract of CH 648 497, dated Mar. 29, 1985. |
English-language abstract of EP 0 565 133, dated Mar. 10, 1993. |