Box 295
Contains 34 Results:
Postal Rates and Instructions, 1937-1940
The General Files contain correspondence, engineering reports, maps, and drawings relating to the Copper Range Company as a whole, as well as mine and mill sites other than Baltic Mine, Champion Mine, and Champion Mill.
Production Record, 1938
The General Files contain correspondence, engineering reports, maps, and drawings relating to the Copper Range Company as a whole, as well as mine and mill sites other than Baltic Mine, Champion Mine, and Champion Mill.
Pumps (includes Isle Royale), 1937
The General Files contain correspondence, engineering reports, maps, and drawings relating to the Copper Range Company as a whole, as well as mine and mill sites other than Baltic Mine, Champion Mine, and Champion Mill.
Rock Drill Rod Machine (Toledo Pipe Threading Machine Company), undated
The General Files contain correspondence, engineering reports, maps, and drawings relating to the Copper Range Company as a whole, as well as mine and mill sites other than Baltic Mine, Champion Mine, and Champion Mill.
Ropes: "Inspection and Tensile Tests of Some Worn Wire Ropes" (U. S. Department of Commerce, National Bureau of Standards), 1936-1943
The General Files contain correspondence, engineering reports, maps, and drawings relating to the Copper Range Company as a whole, as well as mine and mill sites other than Baltic Mine, Champion Mine, and Champion Mill.
Safety: General, 1930-1943
The General Files contain correspondence, engineering reports, maps, and drawings relating to the Copper Range Company as a whole, as well as mine and mill sites other than Baltic Mine, Champion Mine, and Champion Mill.
Safety: Missed Holes Found and Blasted, 1937-1940
The General Files contain correspondence, engineering reports, maps, and drawings relating to the Copper Range Company as a whole, as well as mine and mill sites other than Baltic Mine, Champion Mine, and Champion Mill.
Safety Rules for Underground Work, undated
The General Files contain correspondence, engineering reports, maps, and drawings relating to the Copper Range Company as a whole, as well as mine and mill sites other than Baltic Mine, Champion Mine, and Champion Mill.
Special Disbursements to Employees, 1937-1942
The General Files contain correspondence, engineering reports, maps, and drawings relating to the Copper Range Company as a whole, as well as mine and mill sites other than Baltic Mine, Champion Mine, and Champion Mill.
Time Study and Bonus Payments, circa 1929
The General Files contain correspondence, engineering reports, maps, and drawings relating to the Copper Range Company as a whole, as well as mine and mill sites other than Baltic Mine, Champion Mine, and Champion Mill.