In Court of Customs and Patent Appeals, patent appeal no. 5540, in re Carl F. Prutton. lubricant improving agent & lubricant containing same; brief for commissioner of patents.
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In Court of Customs and Patent Appeals, patent appeal no. 5540, in re Carl F. Prutton. lubricant improving agent & lubricant containing same; brief for commissioner of patents.
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In Court of Customs and Patent Appeals, patent appeal no. 5540, in re Carl F. Prutton. lubricant improving agent & lubricant containing same; brief for commissioner of patents.