Nos. 16470, 16505. Argued February 5, 1962. Decided May 3, 1962. Mr. David Leo Uelmen, Milwaukee, Wis., for petitioner in No. 16470. Mrs. Nancy M. Sherman, Attorney, National Labor Relations Board, with whom Messrs. Stuart Rothman, General Counsel, Dominick L. Manoli, Associate General Counsel, Marcel Mallet-Prevost, Asst. General Counsel, and Samuel M. Singer, Attorney, National Labor Relations Board, were on the brief, for petitioner in No. 16505 and respondent in No. 16470. Mr. O.S. Hoebreckx