Box 65
Contains 18 Results:
Sorbate Extraction of Impurities from Zinc Plant Solution, 1969-1972
The records of Bunker Hill/Pintlar span the years 1887 to 1996, with the bulk of the material covering the years 1968 to 1996.
Included in the collection are administrative records, correspondence, Superfund work plans and proposals, media coverage, litigation documents, financial records, personnel information and stockholder records.
Process for Stripping Metal from a Cathode, 1967-1975
The records of Bunker Hill/Pintlar span the years 1887 to 1996, with the bulk of the material covering the years 1968 to 1996.
Included in the collection are administrative records, correspondence, Superfund work plans and proposals, media coverage, litigation documents, financial records, personnel information and stockholder records.
Hydrometal Treatment of Argentiferous Tetrahedrite Minerals, 1969-1971
The records of Bunker Hill/Pintlar span the years 1887 to 1996, with the bulk of the material covering the years 1968 to 1996.
Included in the collection are administrative records, correspondence, Superfund work plans and proposals, media coverage, litigation documents, financial records, personnel information and stockholder records.
Continuous Process for Purification of Leached Zinc Calcine Filtrate, 1969-1970
The records of Bunker Hill/Pintlar span the years 1887 to 1996, with the bulk of the material covering the years 1968 to 1996.
Included in the collection are administrative records, correspondence, Superfund work plans and proposals, media coverage, litigation documents, financial records, personnel information and stockholder records.
Removing Chlorides from Chloride Bearing Zinc Oxides, 1970-1971
The records of Bunker Hill/Pintlar span the years 1887 to 1996, with the bulk of the material covering the years 1968 to 1996.
Included in the collection are administrative records, correspondence, Superfund work plans and proposals, media coverage, litigation documents, financial records, personnel information and stockholder records.
Sulfuric Acid Purification Process, 1973-1975
The records of Bunker Hill/Pintlar span the years 1887 to 1996, with the bulk of the material covering the years 1968 to 1996.
Included in the collection are administrative records, correspondence, Superfund work plans and proposals, media coverage, litigation documents, financial records, personnel information and stockholder records.
Hydraulic Cathode Stripper for Metals Electrolytically Deposited, 1968-1973
The records of Bunker Hill/Pintlar span the years 1887 to 1996, with the bulk of the material covering the years 1968 to 1996.
Included in the collection are administrative records, correspondence, Superfund work plans and proposals, media coverage, litigation documents, financial records, personnel information and stockholder records.
Cell for Electrolytic Deposition of Metals, 1968-1973
The records of Bunker Hill/Pintlar span the years 1887 to 1996, with the bulk of the material covering the years 1968 to 1996.
Included in the collection are administrative records, correspondence, Superfund work plans and proposals, media coverage, litigation documents, financial records, personnel information and stockholder records.
Cathode for Electrolytic Deposition of Metals, 1968-1970
The records of Bunker Hill/Pintlar span the years 1887 to 1996, with the bulk of the material covering the years 1968 to 1996.
Included in the collection are administrative records, correspondence, Superfund work plans and proposals, media coverage, litigation documents, financial records, personnel information and stockholder records.
Electrolytic Cell Bus Supports, 1968-1970
The records of Bunker Hill/Pintlar span the years 1887 to 1996, with the bulk of the material covering the years 1968 to 1996.
Included in the collection are administrative records, correspondence, Superfund work plans and proposals, media coverage, litigation documents, financial records, personnel information and stockholder records.