GRAHAM, Presiding Judge.
This proceeding is an appeal from the decision of the Board of Appeals of the United States Patent Office, affirming the decision of the Examiner in refusing to allow all the claims of the application of the appellant for a patent on certain alleged improvements in pumping apparatus. The claims are nine in number, of which claims 16 and 21 are typical. They are as follows:
"16. In pumping apparatus of the character described, in combination...
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