| Number | Date | Country | Kind |
|---|---|---|---|
| 43 05 464.1 | Feb 1993 | DEX |
| Number | Name | Date | Kind |
|---|---|---|---|
| 753223 | Beeg | Mar 1904 | |
| 1738569 | Fuller | Dec 1929 | |
| 3593487 | Cleland | Jul 1971 | |
| 3655080 | Gianese | Apr 1972 | |
| 3967740 | Mollins | Jul 1976 | |
| 4056916 | Seragnoli | Nov 1977 | |
| 4170285 | Hinchcliffe | Oct 1979 | |
| 4181212 | Hinchcliffe | Jan 1980 | |
| 4220236 | Blidung et al. | Sep 1980 | |
| 4403908 | Cartoceti | Sep 1983 | |
| 4995769 | Berger et al. | Feb 1991 | |
| 5088589 | Geerts | Feb 1992 | |
| 5123798 | Glosmann et al. | Jun 1992 | |
| 5348436 | Hogenkamp et al. | Sep 1994 |
| Number | Date | Country |
|---|---|---|
| 334115 | Sep 1989 | EPX |
| 336897 | Oct 1989 | EPX |
| 2168120 | Aug 1973 | FRX |
| 1127810 | Dec 1960 | DEX |
| 7200446 | Jan 1972 | DEX |
| 2323079 | Oct 1976 | DEX |
| 2636163 | Feb 1977 | DEX |
| 2900778 | Jul 1979 | DEX |
| 3322302 | Dec 1983 | DEX |
| 3638538 | May 1988 | DEX |
| 8630229 | Nov 1988 | DEX |
| 2265808 | Aug 1989 | DEX |
| 273045 | Nov 1989 | DEX |
| 2004829 | Apr 1979 | GBX |
| 2017618 | Oct 1979 | GBX |
| 2061216 | May 1981 | GBX |
| 2072119 | Sep 1981 | GBX |
| 2142894 | Jan 1985 | GBX |
| Entry |
|---|
| JP 56 93623 A. In: Patent Abstracts of Japan, M94, Oct. 29, 1981, vol. 5, No. 170. |