Number | Date | Country | Kind |
---|---|---|---|
970378 | Mar 1978 | GBX |
Number | Name | Date | Kind |
---|---|---|---|
1142821 | Lavers | Jun 1915 | |
1741028 | Koenig | Dec 1929 | |
2120485 | Clemmer | Jun 1938 | |
2349637 | Rockwardt | May 1944 | |
2559104 | Arbiter | Jul 1951 |
Number | Date | Country |
---|---|---|
9508 OF | Jan 1914 | AUX |
640751 | May 1962 | CAX |
1118112 | Nov 1961 | DEX |
1150031 | Jun 1963 | DEX |
152439 | Apr 1961 | SUX |
Entry |
---|
Chem. Abst., vol. 64, 1966-4668 c. |
Fiftieth Anniversary of Froth Flotation, Col. School of Mines, Jul. 1961, Dezincing of Lead Concentrate, pp. 145-161. |