RICH, Judge.
This appeal is from a decision of the Patent Office Board of Appeals, rejecting claims 8, 9, 10 and 15 of appellant's application No. 130,157, filed November 30, 1949, for "Oil Cooler Emergency By-Pass Valve," as unpatentable over the prior art. Nine claims stand allowed.
The claims on appeal read as follows (all emphasis being ours):
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