Lovell Manufacturing Co. v. Cary
147 U.S. 623 (1893)

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U.S. Supreme Court

Lovell Manufacturing Co. v. Cary, 147 U.S. 623 (1893)

Lovell Manufacturing Company v. Cary

No. 110

Argued January l7-18, 1893

Decided March 6, 1893

147 U.S. 623

Syllabus

Letters patent No. 116,266, granted to Alauson Gary, as inventor, June 27, 1871, for an improvement in modes of tempering springs, are invalid, in view of the state of the art, for want of patentable invention.

The invention appears from the specification to be a method of restoring steel wire which has been mechanically strained by subjecting it to a temperature of 600

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