Number | Date | Country | Kind |
---|---|---|---|
3808082 | Mar 1988 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
4590218 | Vass | May 1986 | |
4764536 | Proksa et al. | Aug 1988 | |
4777186 | Stang et al. | Oct 1988 |
Number | Date | Country |
---|---|---|
0175252 | Mar 1986 | EPX |
3434443 | Mar 1986 | DEX |
Entry |
---|
Kunststoffe, 1984, No. 11, pp. 659-660. |