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AETNA BALL & ROLLER BEAR. CO. v. STANDARD UNIT P. CORP.

No. 10584.

198 F.2d 222 (1952)

AETNA BALL & ROLLER BEARING CO. v. STANDARD UNIT PARTS CORP.

United States Court of Appeals Seventh Circuit.

July 16, 1952.

Attorney(s) appearing for the Case

Sidney Neuman, Chicago, Ill., Paul Kolisch, J. Pierre Kolisch, New York City, Thiess, Olson & Mecklenburger, Chicago, Ill., of counsel, for appellant.

Roy H. Olson, Curtis F. Prangley, Chicago, Ill., for appellee.

Before MAJOR, Chief Judge, and DUFFY, and SWAIM, Circuit Judges.

MAJOR, Chief Judge.

This appeal is from a judgment holding valid and infringed certain claims of three patents, relating to ball bearings, issued to Louis H. Stein, as follows: No. 1,958,725, filed August 14, 1933, issued May 15, 1934; No. 2,140,818, filed November 22, 1937, issued December 20, 1938, and No. 2,230,471, filed October 13, 1938, issued February 4, 1941. Plaintiff is the owner of the three patents by assignment from Stein. We shall refer to the patents...

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