Jobst, Conrad. In Court of Appeals of District of Columbia, Oct. term, 1928, patent appeal no. 2222, in re Conrad Jobst, brushes; brief for commissioner of patents.
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Jobst, Conrad. In Court of Appeals of District of Columbia, Oct. term, 1928, patent appeal no. 2222, in re Conrad Jobst, brushes; brief for commissioner of patents.
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Jobst, Conrad. In Court of Appeals of District of Columbia, Oct. term, 1928, patent appeal no. 2222, in re Conrad Jobst, brushes; brief for commissioner of patents.