Number | Date | Country | Kind |
---|---|---|---|
1343/98 | Aug 1998 | AT |
Number | Name | Date | Kind |
---|---|---|---|
4308184 | Thoma | Dec 1981 | |
4728542 | Nachtkamp | Mar 1988 | |
5059639 | Ohkura et al. | Oct 1991 | |
5569707 | Blum | Oct 1996 |
Entry |
---|
Derwent Abstract of JP 52-155627 (Dec. 24, 199&); AN 1978-11306A, Section Ch, Week 197806. |