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MADISON PATENT CORP. v. HARRY WILLIAMS MFG. CO.

Nos. 48 C 382, 48 C 387, 48 C 393, 48 C 394.

87 F.Supp. 87 (1949)

MADISON PATENT CORPORATION v. HARRY WILLIAMS MFG. CO. et al.

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

May 31, 1949.

Attorney(s) appearing for the Case

Casper W. Ooms and Callard Livingston, Chicago, Ill., for plaintiff.

Clarence E. Threedy, Benjamin M. Becker, Bernard Savin and Robert L. Kahn, Chicago, Ill., for defendants.

BARNES, Chief Judge.

Questions of the infringement and validity of two patents are involved in this suit.

One of the patents involved is Breitenstein et al. No. 2,155,929, issued April 25, 1939, on an application filed August 21, 1936 (hereinafter referred to as Patent 929). Patent 929 relates to a score registering device for registering a score by an illumination upon a screen. Only the defendants, Harry Williams Manufacturing Co. (hereinafter referred to...

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