Number | Date | Country | Kind |
---|---|---|---|
9631/80 | Dec 1980 | CHX | |
5426/81 | Aug 1981 | CHX |
Number | Name | Date | Kind |
---|---|---|---|
1159184 | Dale | Nov 1915 | |
1326246 | Young | Dec 1919 | |
2831232 | Lawson | Apr 1958 | |
2964821 | Meehan | Dec 1960 | |
3008551 | Cole | Nov 1961 | |
3664630 | Maynen et al. | May 1972 | |
4139670 | Fehlmann | Feb 1979 |
Number | Date | Country |
---|---|---|
1220966 | Jan 1971 | GBX |
2052637 | Jan 1981 | GBX |
Entry |
---|
"New For Industry", Science Digest, Feb. 1974, p. 56. |