N.L.R.B. v. Union De Tronquistas503 F.2d 1396 1st Cir.1974Check Treatment503 F.2d 1396 87 L.R.R.M. (BNA) 3274 N.L.R.B.v.Union de Tronquistas 74-1254 UNITED STATES COURT OF APPEALS First Circuit 8/27/74 1 N.L.R.B. ENFORCED