In Avco Corp. v. Aero Lodge No. 735, 390 U.S. 557 , 560, 88 S. Ct. 1235 , 1237, 20 L. Ed. 2d 126 (1968), the Court held with little elaboration that a state court lawsuit to enjoin a defendant union from striking actually arose under section 301 of the Labor Management Relations Act (LMRA), codified at 29 U.S.C. 185, which grants federal jurisdiction for suits alleging violations of collective bargaining agreements. 390 U.S. at 560, 88 S. Ct. at 1237. The Court therefore concluded that the case was removable to federal court. Id.