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MINNEAPOLIS-HONEYWELL REGULATOR CO. v. MIDWESTERN INST., INC.

No. 57 C 1267.

188 F.Supp. 248 (1960)

MINNEAPOLIS-HONEYWELL REGULATOR COMPANY, Plaintiff, v. MIDWESTERN INSTRUMENTS, INC., Defendant.

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

On Motion for Amendment of Findings October 21, 1960.

Attorney(s) appearing for the Case

Will Freeman, Bair, Freeman & Molinare, Chicago, Ill., for plaintiff.

Ooms, Welsh & Bradway, Chicago, Ill., Gordon D. Schmidt, Hovey, Schmidt, Johnson & Hovey, Kansas City, Mo., for defendants.

ROBSON, District Judge.

This suit involves the validity and infringement of Claims 3 and 13 through 17, inclusive, of the C. A. Heiland Patent No. 2,580,427 for a "Recording System," issued January 1, 1952, on an application filed August 11, 1944.

The essence of the invention is an oscillograph which produces an immediately visible trace or chart of the electrical phenomena being observed. It is used in many scientific, military and medical fields. The unique...

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