Title | Date | Type | ||
---|---|---|---|---|
1 |
![]() |
A process for the treatment of oxidized zinc ores | 1917 | Text |
2 |
![]() |
Igneous concentration of oxidized ores of zinc | 1916-05 | Text |
3 |
![]() |
The manufacture of zinc oxide directly from oxidized ores | 1920 | Text |
4 |
![]() |
Mining and milling of complex lead and zinc ores in the Park City district, Utah | 1916 | Text |
5 |
![]() |
Proposed innovations in the metallurgy of zinc | 1914-08 | Text |