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JOHNSON v. DUQUESNE LIGHT CO.

No. 1206.

29 F.2d 784 (1928)

JOHNSON v. DUQUESNE LIGHT CO.

District Court, W. D. Pennsylvania.

August 15, 1928.

Attorney(s) appearing for the Case

Philip E. Siggers and Alva D. Adams, both of Washington, D. C., Emery, Booth, Janney & Varney, of Boston, Mass., and Christy & Christy, of Pittsburgh, Pa., for plaintiff.

Byrnes, Stebbins & Parmelee, and Reed, Smith, Shaw & McClay, all of Pittsburgh, Pa., for defendant.

SCHOONMAKER, District Judge.

This is a patent suit involving the validity and infringement of Johnson patent, No. 1,366,078, issued January 18, 1921, on application filed March 16, 1918, Serial No. 222,947.

Claims 6 to 11 of the patent are in suit. These all undertake to cover a method of testing of strings of suspension insulators on live transmission lines for the purpose of ascertaining whether or not any of the insulator units is defective.

As...

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