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SHELL v. ELECTRIC AUTO LITE CO.

Civ. No. 8065.

98 F.Supp. 462 (1951)

SHELL et al. v. ELECTRIC AUTO LITE CO.

United States District Court E. D. Michigan S. D.

April 24, 1951.

Attorney(s) appearing for the Case

Pillon & Pillon, and Gregory M. Pillon, all of Detroit, Mich., for plaintiffs.

John A. Blair and Harness, Dickey & Pierce, all of Detroit, Mich., for defendant.

PICARD, District Judge.

This is a suit for infringement of plaintiffs' patent No. 1,968,225 pertaining to an invention and improvement in spark splugs. It contains two claims which are nearly identical and read as follows:

"1. A spark plug of the class described comprising: a metallic shell having a bore formed therethrough, said shell having intermediate the ends of said bore an engagement shoulder forming portion; an insulating

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