Number | Date | Country | Kind |
---|---|---|---|
3228675 | Jul 1982 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
2819488 | Gimbel | Jan 1958 | |
3594857 | Michl | Jul 1971 | |
3619854 | Ilgen et al. | Nov 1971 | |
3766603 | Urbutis et al. | Oct 1973 | |
3907003 | Regner et al. | Sep 1975 | |
4185358 | Regner et al. | Jan 1980 | |
4210981 | Story | Jul 1980 | |
4401135 | Andrae et al. | Aug 1983 | |
4401136 | Porrmann et al. | Aug 1983 |
Number | Date | Country |
---|---|---|
0037543 | Oct 1981 | EPX |
0054162 | Jun 1982 | EPX |
0073321 | Mar 1983 | EPX |
1288944 | Feb 1969 | DEX |
Entry |
---|
European Search Report. |
U.S. application Ser. No. 498,474=EP-OS 0,037,543. |
U.S. application Ser. No. 498,524=EP-OS 0,054,162. |