In re POWELSON et al. Patent Appeal No. 2729.Court of Customs and Patent Appeals. May 27, 1931. Appeal from the Board of Patent Appeals. Application for patent by Wilfrid V.N. Powelson and another. From a decision rejecting certain claims, the applicants appeal. Reversed. Everett E. Kent, of Boston, Mass., for appellants. T.A. Hostetler, of Washington, […]