LENROOT, Associate Judge.
This is an appeal from a decision of the Board of Appeals of the United States Patent Office, affirming a decision of the Examiner of Interferences, awarding priority of invention to appellee.
The issue is stated in eight counts, of which counts 1 and 8 are illustrative and read as follows:
"1. The process of preparing concrete mixtures for deferred use comprising the steps of mixing all ingredients at a central station to...
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