Number | Name | Date | Kind |
---|---|---|---|
D229585 | Singleton | Dec 1973 | |
D233916 | Van Wyngarden et al. | Dec 1974 | |
D236238 | Larsson | Aug 1975 | |
D238401 | Ackerey | Jan 1976 | |
D247794 | Tazawa et al. | Apr 1978 | |
4191292 | Schweizer | Mar 1980 |
Number | Date | Country |
---|---|---|
2612773 | Oct 1976 | DEX |