No. 75-1030. Argued October 13, 1975. Decided February 12, 1976. Certiorari Denied May, 19, 1976. Charles A. Horsky, Jerome Ackerman, Robert H. Loeffler, John W. Douglas, Washington, D.C., for petitioner. Isaac N. Groner, Charles R. Both, Cole Groner, P.C., Washington, D.C., for intervenor. Elliott Moore, Alan Banov, Deputy Associate Gen. Counsel, N.L.R.B., Washington, D.C., for respondent. Petition for review from the National Labor Relations Board. Before EDWARDS, McCREE and MILLER, Circuit Judges