Number | Date | Country | Kind |
---|---|---|---|
2951799 | Dec 1979 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
2631924 | McKinney | Mar 1953 |
Number | Date | Country |
---|---|---|
1051261 | Feb 1959 | DEX |
1052378 | Mar 1959 | DEX |
741757 | Dec 1955 | GBX |
Entry |
---|
Barksdale, J., Titanium, 2nd Ed., Ronald Press, N.Y., 1966, pp. 231-237. |