Nos. 82-1418 to 82-1420, 82-1743, 82-1589 and 82-1940. Argued May 5, 1983. Decided June 30, 1983. George H. Cohen, with whom Laurence Gold, Washington, D.C., was on brief, for petitioners, Oil, Chemical and Atomic Workers, Local Union No. 6-418, AFL-CIO, et al. George J. Tichy, II, San Francisco, Cal., with whom Robert K. Carrol, San Francisco, Cal., for petitioner, Borden Chemical, A Division of Borden, Inc. Howard A. Crawford, with whom Jack D. Rowe, Kansas City, Mo., was on brief, for petitioner
No. 87-5125. Submitted December 14, 1987. Decided April 11, 1988. Carol A. Ellingson, St. Paul, Minn., for petitioner. Fred Cornnell, Washington, D.C., for respondent. Petition for review from the National Labor Relations Board. Before JOHN R. GIBSON, BOWMAN, and WOLLMAN, Circuit Judges. BOWMAN, Circuit Judge. WCCO Radio, Inc. (WCCO or the Company) challenges a decision of the National Labor Relations Board (the Board) which held that WCCO violated sections 8(a)(1) and 8(a)(5) of the National Labor