Nos. 16273 and 16301. Argued January 4, 1962. Decided June 7, 1962. Petition for Rehearing Denied in No. 16,273 July 5, 1962. Certiorari Denied December 10, 1962. See 83 S.Ct. 307. Mr. David S. Davidson, Washington, D.C., with whom Mr. Benjamin C. Sigal, Washington, D.C., was on the brief, for petitioner in No. 16273. Mr. Hans J. Lehmann, Attorney, National Labor Relations Board, with whom Messrs. Stuart Rothman, General Counsel, National Labor Relations Board, Dominick L. Manoli, Associate General