Diamond Mfg. Co. v. Dallas Brass &. Copper Co.

DONAHUE, Circuit Judge.

The action was originally brought by A. C. Dallas & Son, Incorporated, against the Diamond Manufactur*251ing Company, for infringement of claims 1 to 4, inclusive,_ of United States letters patent No. 1,034,954, issued to the plaintiff corporation August 6, 1912, on the application of John D. Beebe, filed May 21, 1910. Later a supplemental bill was filed, alleging that the Motor Products Corporation had absorbed and succeeded to the business of the Diamond Manufacturing Company, and the Motors Products Corporation was made a party defendant. The defenses are invalidity and…