Number | Date | Country | Kind |
---|---|---|---|
3026334 | Jul 1980 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3004981 | Asinger | Oct 1961 | |
3700682 | Asinger | Oct 1972 | |
3931208 | Offermanns | Jan 1976 | |
4153606 | Scherberich | May 1979 |
Number | Date | Country |
---|---|---|
1063602 | Aug 1959 | DEX |
1795299 | Mar 1972 | DEX |
2254701 | May 1974 | DEX |
2645731 | Apr 1978 | DEX |
Entry |
---|
Asinger, Angew. Che., Internat. Edit., vol. 6, (1967), pp. 907-919. |