Number | Date | Country | Kind |
---|---|---|---|
68126 | Jul 1973 | LU |
Number | Name | Date | Kind |
---|---|---|---|
199134 | Witherbee | Jan 1878 | |
278685 | Cremer | Jun 1883 | |
3281135 | Boron | Oct 1966 | |
3425677 | White | Feb 1969 | |
3558119 | Demalander | Jan 1971 |
Number | Date | Country |
---|---|---|
235,316 | Jun 1925 | UK |
142,658 | Dec 1960 | SU |
Entry |
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Publication: Metallurgist No. 12; Dec., 1963; author: Kordabnev. |