No. 24808. Argued June 5, 1974. Decided October 11, 1974. Allen H. Feldman, Atty., N.L.R.B., with whom John S. Irving, Deputy Gen. Counsel, Patrick Hardin, Associate Gen. Counsel, Elliott Moore, Deputy Associate Gen. Counsel, and Robert A. Giannasi, Asst. Gen. Counsel, N.L.R.B., were on the brief for petitioner. Marcel Mallet-Prevost, Asst. Gen. Counsel, N.L.R.B., at the time the record was filed, also entered an appearance for petitioner. Herbert C. Snyder, Jr., Indianapolis, Ind., for respondent