McConnell, Henry K. In Court of Appeals of District of Columbia, Jan. term, 1929, patent appeal no. 2286, in re Henry K. McConnell, process of and apparatus for recovering nicotine from tobacco; brief for commissioner of patents.
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McConnell, Henry K. In Court of Appeals of District of Columbia, Jan. term, 1929, patent appeal no. 2286, in re Henry K. McConnell, process of and apparatus for recovering nicotine from tobacco; brief for commissioner of patents.
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McConnell, Henry K. In Court of Appeals of District of Columbia, Jan. term, 1929, patent appeal no. 2286, in re Henry K. McConnell, process of and apparatus for recovering nicotine from tobacco; brief for commissioner of patents.