Kern, Rudolf. In Court of Customs and Patent Appeals, patent appeal no. 4044. in re Rudolf Kern, emulsions and process of manufacturing same; brief for commissioner of patents.
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Kern, Rudolf. In Court of Customs and Patent Appeals, patent appeal no. 4044. in re Rudolf Kern, emulsions and process of manufacturing same; brief for commissioner of patents.
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Kern, Rudolf. In Court of Customs and Patent Appeals, patent appeal no. 4044. in re Rudolf Kern, emulsions and process of manufacturing same; brief for commissioner of patents.