No. 21985. Argued February 14, 1969. Decided April 11, 1969. Petition for Rehearing Denied May 28, 1969. Mr. Donald J. Capuano, Washington, D.C., with whom Messrs. Martin F. O'Donoghue, Washington, D.C., and Joseph H. Kaplan, Miami, Fla., were on the brief, for petitioner. Mr. Elliott Moore, Atty., National Labor Relations Board, with whom Messrs. Arnold Ordman, General Counsel, Dominick L. Manoli, Associate General Counsel, and Marcel Mallet-Prevost, Asst. General Counsel, National Labor Relations