Number | Date | Country | Kind |
---|---|---|---|
3927474 | Aug 1989 | DEX | |
3930870 | Sep 1989 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3829107 | Machado et al. | Aug 1974 | |
4195850 | Berger et al. | Apr 1980 | |
4199158 | de Munck | Apr 1980 | |
4685825 | Buckenauer | Aug 1987 |
Number | Date | Country |
---|---|---|
414137 | Sep 1981 | EPX |
337177 | Oct 1989 | EPX |
306581 | Nov 1989 | EPX |
340659 | Nov 1989 | EPX |
368174 | May 1990 | EPX |
7432945 | Jan 1975 | DEX |
3543808 | Jun 1986 | DEX |
4016247 | Nov 1990 | DEX |
Entry |
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European Search Report conducted during prosecution of European Patent No. 414137 (in German language only). |