No. 1946. Submitted March 18, 1927. Decided May 2, 1927. Appeal from Commissioner of Patents. Patent interference proceeding between Erastus E. Winkley and Leander A. Cogswell. From a decision of the Commissioner of Patents for the latter, the former appeals. Affirmed. A.D. Salinger, of Boston, Mass., and H.A. Dodge, of Washington, D.C., for appellant. Robert Cushman, of Boston, Mass., and A.V. Cushman, of Washington, D.C., for appellee. Before MARTIN, Chief Justice, and ROBB and VAN ORSDEL, Associate