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Box 64

 Container

Contains 21 Results:

Miscellaneous Patents (folder 1), 1966-1970

 File — Box: 64, Folder: 1077
Identifier: D
Scope and Contents From the Collection:

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.

Dates: 1966-1970

Miscellaneous Patents (folder 2), 1971-1976

 File — Box: 64, Folder: 1078
Identifier: D
Scope and Contents From the Collection:

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.

Dates: 1971-1976

Process for Recovery Metals from Zinc Plant Residue, 1967-1970

 File — Box: 64, Folder: 1079
Identifier: D
Scope and Contents From the Collection:

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.

Dates: 1967-1970

Liquid Ion Exchange Process for Metal Recovery, 1967-1975

 File — Box: 64, Folder: 1080
Identifier: D
Scope and Contents From the Collection:

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.

Dates: 1967-1975

Selective Precipitation of Elements Using Monovalent Ions, 1967

 File — Box: 64, Folder: 1081
Identifier: D
Scope and Contents From the Collection:

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.

Dates: 1967

Continuous Process for Purification of Leach Zinc Calcine Filtrate Solution, 1967-1974

 File — Box: 64, Folder: 1082
Identifier: D
Scope and Contents From the Collection:

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.

Dates: 1967-1974

Carrier Conveyor Transfer Mechanism, 1967-1969

 File — Box: 64, Folder: 1083
Identifier: D
Scope and Contents From the Collection:

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.

Dates: 1967-1969

Continuous Process for Leaching of Zinc Calcines, 1967-1976

 File — Box: 64, Folder: 1084
Identifier: D
Scope and Contents From the Collection:

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.

Dates: 1967-1976

Process for Preventing Agglomeration of Cadmium in Solution, 1968-1973

 File — Box: 64, Folder: 1085
Identifier: D
Scope and Contents From the Collection:

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.

Dates: 1968-1973

Rapping Device During Hydraulic Shipping Operation, 1968-1970

 File — Box: 64, Folder: 1086
Identifier: D
Scope and Contents From the Collection:

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.

Dates: 1968-1970