In Wall v. Rolls-Royce of America, Inc., 4 F. 2d 333 (C. C. A. 3, 1925) , the court enjoined Wall from using the name "Rolls-Royce Tube Company" in carrying on the business of selling radio tubes. The plaintiff, Rolls-Royce Company, was an American subsidiary of the British Rolls-Royce Company, and was engaged in the manufacture, distribution, and sale of automobiles, aeroplanes, and parts therefor.