Michigan Supreme Court February 27, 1931, Docket No. 66, Calendar No. 35,214. (Hamilton Manfg. Co. v. Poll.)

Clark, J.

The bill was filed to enjoin infringement of patent and for other relief. Plaintiff had decree. Defendants have appealed.

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The contest was narrowed at the hearing to alleged infringement of claims to an automatic steering device on a planting machine manufactured and sold by plaintiff on which plaintiff has patent No. 1,723,-073.