LOURIE, Circuit Judge.
Carroll Touch, Inc. appeals from the judgment of the United States District Court for the Central District of Illinois holding that Electro Mechanical Systems, Inc. (EMS) did not infringe claim 24 of U.S. Patent 4,267,443 and that the '443 patent is invalid. Carroll Touch, Inc. v. Electro Mechanical Sys., Inc., 24 USPQ2d 1349, 1992 WL 361702 (C.D.Ill. 1992) (memorandum opinion). EMS cross appeals from the order of the district court granting...
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