MORRIS, District Judge.
This is a proceeding under Title 35, Section 145, U.S.C. (formerly Section 4915, Revised Statutes), for a determination that a patent should issue on claims 1, 2 and 3 in plaintiff's application for a patent, Serial No. 581,373, filed March 7, 1945, for apparatus in connection with the operation of valves in outlets for steam boilers. The defendant asserts that a patent on such claims should not issue in that they are not patentable over Patent...
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