Kennecott Copper Corporation v. State Tax Commission Silver King Coalition Mines Company

Messrs.C. C. Parsons, of Salt Lake City, Utah, and Charles A. Horsky, of Washington, D.C., for petitioners.

Messrs.Arthur H. Nielsen and Zar E. Hayes, both of Salt Lake City, Utah, for respondents.

Mr. Justice REED delivered the opinion of the Court.