Marden, John W. In Court of Customs and Patent Appeals, patent appeal no 2632, in re John Wesley Marden and Malcolm N. Rich, preparation of ductile vanadium; brief for commissioner of patents.
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Marden, John W. In Court of Customs and Patent Appeals, patent appeal no 2632, in re John Wesley Marden and Malcolm N. Rich, preparation of ductile vanadium; brief for commissioner of patents.
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Marden, John W. In Court of Customs and Patent Appeals, patent appeal no 2632, in re John Wesley Marden and Malcolm N. Rich, preparation of ductile vanadium; brief for commissioner of patents.