Ernst, Walter. In Court of Customs and Patent Appeals, patent appeal no. 5011, in re Walter Ernst, triple action automobile body press; brief for commissioner of patents.
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Ernst, Walter. In Court of Customs and Patent Appeals, patent appeal no. 5011, in re Walter Ernst, triple action automobile body press; brief for commissioner of patents.
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Ernst, Walter. In Court of Customs and Patent Appeals, patent appeal no. 5011, in re Walter Ernst, triple action automobile body press; brief for commissioner of patents.