Kelley v. Diamond Drill & Machine Co.

ACHESON, Circuit Judge.

This was a suit in equity in the Circuit Court of the United States for the Eastern District of Pennsylvania, brought by the Diamond Drill & Machine Company against Frank Kelley et al., trading under the firm name of Kelley Bros. & Spielman, for infringement of letters patent No. 433,79Í, bearing date August 5, 1900, for an improved coil-clasp, granted to Calvin Jackson, of whom the complainant is assignee. At the hearing of the cause upon the pleadings and proofs the Circuit Court adjudged that the patent was valid, and that the defendants had infringed the seventh…