TUTTLE, District Judge.
This suit is brought on patent No. 1,058,210, granted April 8, 1913, to Allie Ray Welch and Fred Stimson Welch, for a novel "method of finishing castings," and transferred by mesne assignment to American Plug Company, and under which M. D. Hubbard Spring Company is the exclusive licensee.
The invention set forth in the patent involves the closing of holes which are left in hollow castings to permit the removal of the sand which constitutes...
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