CAMPBELL, District Judge.
This is a patent suit. The plaintiffs allege the infringement by the defendant of United States letters patent No. 887,997, issued to Edwin B. Cadwell, assignor of one-third to Frank Johnston and one-third to Frank M. Ashley, for improvement in vehicle tires, granted May 19, 1908.
Frank Johnston having died subsequently to the issuance of said patent, the plaintiffs Elwood C. Johnston and William D. Johnston became his successors...
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