Number | Date | Country | Kind |
---|---|---|---|
3939919 | Dec 1989 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
2881049 | Erbe et al. | Apr 1959 | |
3537815 | Burke | Nov 1970 | |
4336235 | Deabriges | Jun 1982 | |
4770866 | Christophliemk | Sep 1988 |
Number | Date | Country |
---|---|---|
0306828 | Mar 1989 | EPX |
0320770 | Jun 1989 | EPX |
2549167 | Nov 1975 | DEX |
3100942 | Jul 1982 | DEX |
3417649 | Nov 1985 | DEX |
3423945 | Jan 1986 | DEX |
Entry |
---|
Benecke & Lagaly, American Minerals, 62, 1977, pp. 763-771. |