Dement, Isaac S. In Court of Appeals of District of Columbia, Jan. term, 1919, patent appeal no. 1250, in re Isaac S. Dement, computing machines; brief for commissioner of patents.
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Dement, Isaac S. In Court of Appeals of District of Columbia, Jan. term, 1919, patent appeal no. 1250, in re Isaac S. Dement, computing machines; brief for commissioner of patents.
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Dement, Isaac S. In Court of Appeals of District of Columbia, Jan. term, 1919, patent appeal no. 1250, in re Isaac S. Dement, computing machines; brief for commissioner of patents.