No. 75-1065. Argued January 21, 1976. Decided June 28, 1976. Rehearing Denied August 2, 1976. Certiorari Denied January 25, 1977. Jerry D. Anker, Washington, D.C., with whom Lawrence J. Sherman, Washington, D.C., was on the brief, for petitioner. Jay E. Shanklin, Atty., N.L.R.B., Washington, D.C., with whom John S. Irving, Jr., Deputy Gen. Counsel, and Elliott Moore, Deputy Associate Gen. Counsel, N.L.R.B., Washington, D.C., were on the brief, for respondent. Marvin J. Martin, Wichita, Kan., with