GARRETT, Associate Justice.
On January 17, 1929, appellant filed an application in the United States Patent Office entitled, "Acoustical Product." The application matured into patent 1,917,112, issued July 4, 1933. During its prosecution the application was several times amended, many claims being canceled. As issued, the patent contains only two claims.
On March 14, 1934, appellant filed application for a reissue of his patent, into which application he copied...
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