<span>Two typed documents and one typed letter related to patent issues with the Brush Laboratories Company. First document is a Transfer of Interest in Patent between the Brush Laboratories, the Hayes-Fay Laboratories, Kenneth D. Bryson, and Theodore Browne, dated April 19, 1923, in which ownership of a patent by the first three is transferred to Browne. Letter from Evans and McCoy, </span><span>Patent Lawyers, to the Brush Laboratories, dated June 28, 1930, and an enclosed Assignment of Patent from Charles B. Sawyer, dated August 24, 1927, stating that Sawyer hands over patent rights for a Thermostat Cartridge to the Brush Laboratories CompanyCharles F. Brush, Sr., PapersSeries 9: Brush Companies (1880s-1933)Subseries 1: The Brush Laboratories Company (1921-1933)Box 29Folder 15</span>
