Western Electric Co. v. LaRue
139 U.S. 601 (1891)

Annotate this Case

U.S. Supreme Court

Western Electric Co. v. LaRue, 139 U.S. 601 (1891)

Western Electric Company v. LaRue

No. 279

Argued April 1, 1891

Decided April 13, 1891

139 U.S. 601

APPEAL FROM THE CIRCUIT COURT OF THE UNITED

STATES FOR THE SOUTHERN DISTRICT OF NEW YORK

Syllabus

A telegraph sounder constructed under letters patent No. 352,317, granted November 9, 1886, to Charles D. Haskins, infringes the third claim of letters patent No. 270,767 for a new and useful improvement in telegraph keys, viz.,

"The combination, in a telegraph key, of the lever fulcrumed upon the torsional spring, with the adjusting screws H H', for regulating the amplitude of the lever movement and the retractile resistance of the torsion spring, substantially as described."

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