Nos. 22872, 23010. Argued June 19, 1970. Decided December 4, 1970. Motion for Rehearing to Correct Opinion Denied February 26, 1971. Mr. George C. Longshore, Birmingham, Ala., with whom Mr. George H. Cohen, Washington, D.C., was on the brief, for petitioner in No. 22,872. Mrs. Corinna L. Metcalf, 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