Court of Appeals for the Sixth Circuit January 30, 1970, 19292_1 (Skega Aktiebolag and the Allen Pump Company v. The B. F. Goodrich Company)

CELEBREZZE, Circuit Judge.

Skega Aktiebolag and its licensee, the Allen Pump Company [hereinafter “Appellants”], filed this action in the United States District Court for the Northern District of Ohio, Eastern Division, complaining that the B. F. Goodrich Company [hereinafter “Appellee”] had infringed the Appellants’ patent on a lining for a rotary ball mill.