TO
1 - 25 of 5
| Title | Setname | Type | ||
|---|---|---|---|---|
| 1 |
 |
A process for the treatment of oxidized zinc ores | ir_etd | Text |
| 2 |
 |
Igneous concentration of oxidized ores of zinc | ir_etd | Text |
| 3 |
 |
The manufacture of zinc oxide directly from oxidized ores | ir_etd | Text |
| 4 |
 |
Mining and milling of complex lead and zinc ores in the Park City district, Utah | ir_etd | Text |
| 5 |
 |
Proposed innovations in the metallurgy of zinc | ir_etd | Text |
1 - 25 of 5