JOHNSON, Judge.
On August 28, 1942, an interference, No. 80,398 was declared by the Primary Examiner in the United States Patent Office between the patent applications of Crosby Field, No. 352,709, filed August 15, 1940, and Frank W. Knowles, No. 262,869, filed March 20, 1939. The single count of the interference related to Field's claim 41 and Knowles's claim 50 which the parties had added to their applications at the suggestion of the examiner for interference purposes...
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