1871-1905
glass/ceramic period |
Mt Washington Glassworks
Rochdale Mining Company |
1905-1925
radium period |
Welsh-Lofftus Uranium
Rare Metals Company
General Vanadium Company
Standard Chemical Company
National Radium Institute
Radium Luminous Material Corporation
Carnotite Reduction Company
United States Radium Company |
1925-1945
vanadium period |
US Vanadium Corporation
Vanadium Corporation of America
Metals Reserve Company (a federal agency) |
1945-1967
uranium period - government |
American Metal Climax
Anaconda Company
Continental Mining & Milling Company
Cotter Corporation
Dawn Mining Company
Federal-Radorock Gas Hills Partners
Globe Mining Company
Gunnison Mining Company
Homestake-New Mexico Partners
Homestake-Sapin Partners
Kermac Nuclear Fuels Corporation
Kerr-McGee Corporation
Mines Development, Inc
Petrotomics Company
Phillips Petroleum Company
Rare Metals Corporation of America
Susquehanna-Western, Inc
Texas-Zinc Minerals Corporation
Trace Elements Corporation
Union Carbide Corporation
Uranium Reduction Company
Utah Construction & Mining Company
Vanadium Corporation of America
Vitro Chemical Company
Western Nuclear Company |
