"* * * the issues here must be determined on the basis of the applications involved rather than the actual way in which the parties used the marks. Hat Corp. of America v. John B. Stetson Co., 23 F.2d 485, 42 C.C.P.A., Patents, 1001; Intercontinental Mfg. Co., Inc. v. Continental Motors Corp., 230 F.2d 621, 43 C.C.P.A., Patents, 841."