No. 16959. Argued December 17, 1962. Decided February 28, 1963. Mr. Herbert S. Thatcher, Washington, D.C., for petitioner. Mr. David Previant, Milwaukee, Wis., was on the brief for petitioner. Mr. Hugh Hafer, Seattle, Wash., also entered an appearance for petitioner. Miss Vivian Asplund, Atty., N.L.R.B., of the bar of the Court of Appeals of New York, pro hac vice, by special leave of court, with whom Messrs. Stuart Rothman, Gen. Counsel, Dominick L. Manoli, Assoc. Gen. Counsel, Marcel Mallet-Prevost