SMITH, Judge.
Appellant filed application Serial No. 394,547 on November 27, 1953, as a divisional application based on his application Serial No. 182,003 which issued as U. S. Patent No. 2,688,412 on September 7, 1954. The issued patent relates to a coupler knuckle casting. Claims 15-20, inclusive, which are here on appeal, relate to a core mold assembly for use in casting coupler knuckles.
Appellant here appeals from the decision of the Board of Appeals...
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