RICH, Judge.
This appeal is from the decision of the Patent Office Board of Appeals affirming the rejection of claims 18-20 and 25-31 of application serial No. 232,200, filed October 22, 1962, entitled "Mold and Core Blowing Machine." No claim has been allowed.
The invention is directed to the production of resin-bonded sand foundry articles such as molds and cores used in the manufacture of metal castings. In the art, such articles have been produced by blowing...
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