PER CURIAM.
This appeal is from a judgment dismissing a complaint under R.S. § 4915, 35 U.S.C.A. § 63, to authorize the issue of a patent on an improvement in the process of making pulp from resinous logs. The alleged invention consists of adding alum to the water that is used in cooling the log-grinding part of the pulp-making machinery. Adding alum at this early stage in the process of making pulp has proved effective in eliminating trouble caused by the...
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