Coffield, James L. In Court of Appeals of District of Columbia, Jan: term, 1921, patent appeal no. 1392, in re James L. Coffield, improvement in clothes wringers; brief for commissioner of patents.
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Coffield, James L. In Court of Appeals of District of Columbia, Jan: term, 1921, patent appeal no. 1392, in re James L. Coffield, improvement in clothes wringers; brief for commissioner of patents.
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Coffield, James L. In Court of Appeals of District of Columbia, Jan: term, 1921, patent appeal no. 1392, in re James L. Coffield, improvement in clothes wringers; brief for commissioner of patents.