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PERMUTIT CO. v. GRAVER CORPORATION

No. 7909.

37 F.2d 385 (1930)

PERMUTIT CO. v. GRAVER CORPORATION.

District Court, N. D. Illinois, E. D.

January 18, 1930.

Attorney(s) appearing for the Case

Drury W. Cooper, of New York City, George A. Chritton, of Chicago, Ill., and Mitford C. Massie and Allan C. Bakewell, both of New York City, for plaintiff.

Charles L. Byron and George L. Wilkinson, both of Chicago, Ill., for defendant.

LINDLEY, District Judge.

Plaintiff seeks to enjoin defendant from manufacturing water softeners said to infringe claims 1 and 5 of patent to Robert Gans of Berlin, Germany (J. D. Riedel Aktiengelsellschaft, of Berlin, Germany, assignee) applied for August 5, 1911, issued August 22, 1916, No. 1,195,923, as follows:

Claim 1. "A water softening apparatus comprising a casing, a filter bed consisting of a layer of sand or quartz and a layer of zeolites or hydrated...

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