Number | Date | Country | Kind |
---|---|---|---|
3524394 | Jul 1985 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
4141896 | Immel et al. | Feb 1979 |
Number | Date | Country |
---|---|---|
0046183 | Feb 1982 | EPX |
1953153 | Apr 1971 | DEX |
2641381 | Mar 1978 | DEX |
Entry |
---|
European Search Report EP 86 10 9184. |
Number | Date | Country | |
---|---|---|---|
Parent | 883177 | Jul 1986 |