¶1Mr. Nelson Littell, of New York City, with whom Messrs. Robert C. Watson and Albert C. Johnston, both of Washington, D. C., were on the brief, for appellants.
¶2Mr. E. L. Reynolds, of Washington, D. C., with whom Mr. W. W. Cochran, Solicitor, United States Patent Office, of Washington, D. C., was on the brief, for appellee.
¶3Before MILLER, EDGERTON, and ARNOLD, Associate Justices.
¶5Affirmed on the authority of Abbott v. Coe,1 Potts v. Coe,2 and Radtke Patents Corporation v. Coe.3