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AMERICAN DOUCIL CO. v. TWIN CITY WATER SOFTENER CO.

No. 8556.

36 F.2d 673 (1929)

AMERICAN DOUCIL CO. v. TWIN CITY WATER SOFTENER CO. et al.

Circuit Court of Appeals, Eighth Circuit.

December 19, 1929.

Attorney(s) appearing for the Case

Harvey Lechner and Paul Synnestvedt, both of Philadelphia, Pa. (Merchant & Kilgore, of Minneapolis, Minn., Arthur Synnestvedt, of Philadelphia, Pa., and F. D. Merchant, of Minneapolis, Minn., on the brief), for appellant.

F. A. Whiteley, of Minneapolis, Minn., for appellees.

Before STONE, Circuit Judge, and MUNGER and REEVES, District Judges.

MUNGER, District Judge.

The appellant brought a suit to restrain the defendants from alleged infringement of letters patent No. 1,586,764, issued to Harold Joseph Wheaton (American Doucil Company, assignee) June 1, 1926. The court found that there was no infringement and dismissed the bill, and the plaintiff has appealed.

The letters patent embrace a number of claims of processes and of compositions of matter. The patentee claimed to be the inventor of a double...

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