Number | Name | Date | Kind |
---|---|---|---|
3795596 | Kane et al. | Mar 1974 | |
3810971 | Skarbo et al. | May 1924 | |
3906075 | Menz | Sep 1975 | |
3923615 | Kane et al. | Dec 1975 | |
3930974 | Kane et al. | Jan 1976 |
Entry |
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Journal of Mines, vol. 28, No. 4, Apr. 1976, "Processing of Ocean Nodules: A Technical and Economic Review". |
Department of the Interior Bulletin 226, 1925, "The Treatment of Manganese-Silver Ores", Clevenger et al., pp. 33-34. |