Number | Date | Country | Kind |
---|---|---|---|
198 14 655 | Apr 1998 | DE |
Number | Name | Date | Kind |
---|---|---|---|
3923719 | Gattuso | Dec 1975 | |
3962347 | Herz | Jun 1976 | |
5663226 | Scholl et al. | Sep 1997 | |
5703151 | Yamamoto | Dec 1997 | |
5717022 | Beckmann et al. | Feb 1998 |
Number | Date | Country |
---|---|---|
1077865 | Mar 1960 | DE |
4435311 | Apr 1996 | DE |
Entry |
---|
Database WPI, Sec. Ch, Wk. 8118, Derwent. Pub. Ltd., London, GB, Class A12, AN 81-32067D XP002108193 & SU 757 561 B (Kirov Poly) Aug. 23, 1980. |