ZENITH RADIO CORPORATION, Appellant, v. David L. LADD, Commissioner of Patents, Appellee. No. 16820.United States Court of Appeals, District of Columbia Circuit.Argued May 10, 1962. Decided November 8, 1962. Page 860 Mr. Francis W. Crotty, Chicago, Ill., with whom Mr. Homer R. Montague, Washington, D.C., was on the brief, for appellant. Mr. S. Wm. Cochran, […]