Reed Roller Bit Co. v. Brewster Co.

SIBLEY, Circuit Judge.

Appellant Reed Roller Bit Company is a manufacturer of such implements as are here involved, and is the licensee of the other appellants under patents owned by them, to wit, Nos. 1,235,883 and 1,295,134, granted to Dodds August 7, 1917, and February 25, 1919, and No. 1,847,424, granted to appellants Barrett & Robiehaux on March 1, 1932. The appellants complained of infringement of these patents by the Brewster Company and Oksenholt Core Barrel Corporation, ap-pellees, who, denying infringement, contended successfully that those claims of the patents which were relied on…