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SIEMENS AKTIENGESELLSCHAFT v. BELTONE ELECTRONICS CORP.

No. 73 C 296.

381 F.Supp. 57 (1974)

SIEMENS AKTIENGESELLSCHAFT, Plaintiff, v. BELTONE ELECTRONICS CORPORATION, Defendant.

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

September 12, 1974.

Attorney(s) appearing for the Case

John D. Simpson, Hill, Gross, Simpson, VanSanten, Steadman, Chiara & Simpson, Chicago, Ill., for plaintiff.

Sheldon W. Witcoff and Charles G. Call, Molinare, Allegretti, Newitt & Witcoff, Chicago, Ill., for defendant.

MEMORANDUM OPINION

DECKER, District Judge.

This is a patent infringement action by Siemens Aktiengesellschaft ("Siemens"), a German corporation, against Beltone Electronics Corporation ("Beltone"), an Illinois corporation and manufacturer of allegedly infringing hearing aids.1 The patent in suit, U.S. Letters Patent No. 3,209,080, describes a hearing aid worn behind the ear having a frontally-directed microphone or sound opening...

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