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ARIZONA MINERALS CORPORATION v. AMERICAN DOUCIL CO.

No. 9373.

60 F.2d 756 (1932)

ARIZONA MINERALS CORPORATION v. AMERICAN DOUCIL CO.

Circuit Court of Appeals, Eighth Circuit.

July 13, 1932.

Attorney(s) appearing for the Case

Frank A. Whiteley, of Minneapolis, Minn., for appellant.

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

Before STONE and KENYON, Circuit Judges, and OTIS, District Judge.

STONE, Circuit Judge.

Appellee herein brought an action against these appellants for infringement of letters patent No. 1,586,764, issued to Wheaton, covering a base exchange process and product for softening hard water. The defense was invalidity of the patent and noninfringement. The trial court sustained the patent with a very narrow scope, and found no infringement. On appeal to this court [36 F.2d 673] that decree was reversed...

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