Patent Appeal No. 5524. March 7, 1949. Appeal from the Board of Patent Appeals, Serial No. 469,436. Proceeding in the matter of the patent application of Frits Cremer and others. From a decision of the Board of Appeals of the United States Patent Office affirming the decision of the Primary Examiner rejecting certain claims in the application, the applicants appeal. Decision affirmed. Asher Blum, of New York City (Ben Cohen, of Washington, D.C., of counsel), for appellants. W.W. Cochran, of Washington