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HEYER v. DUPLICATOR MFG. CO.

No. 75.

263 U.S. 100 (1923)

HEYER, DOING BUSINESS AS T.A. HEYER DUPLICATOR COMPANY, v. DUPLICATOR MANUFACTURING COMPANY.

Supreme Court of United States.

Decided November 12, 1923.

Attorney(s) appearing for the Case

Mr. Samuel Walker Banning, with whom Mr. Thomas A. Banning was on the brief, for petitioner.

Mr. George L. Wilkinson, with whom Mr. Henry M. Huxley was on the brief, for respondent.

MR. JUSTICE HOLMES delivered the opinion of the Court.

This is a bill in equity brought by the respondent against the petitioner alleging the infringement of a patent. The District Court dismissed the bill, but the Circuit Court of Appeals gave the respondent a decree, one Judge dissenting upon the main point. 284 Fed. 242. The respondent owns a patent for improvements in multiple copying machines, one element of which is...

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