Oshei, John R. In Court of Appeals of District of Columbia, Oct. term, 1928, patent appeal no. 2198, in re John R. Oshei [et al.], windshield cleaners; brief for commissioner of patents.
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Oshei, John R. In Court of Appeals of District of Columbia, Oct. term, 1928, patent appeal no. 2198, in re John R. Oshei [et al.], windshield cleaners; brief for commissioner of patents.
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Oshei, John R. In Court of Appeals of District of Columbia, Oct. term, 1928, patent appeal no. 2198, in re John R. Oshei [et al.], windshield cleaners; brief for commissioner of patents.