Richfield Oil Company. In Court of Customs and Patent Appeals, patent appeal no. 3693, in re Richfield Oil Company, trade mark for gasoline; brief for commissioner of patents.
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Richfield Oil Company. In Court of Customs and Patent Appeals, patent appeal no. 3693, in re Richfield Oil Company, trade mark for gasoline; brief for commissioner of patents.
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Richfield Oil Company. In Court of Customs and Patent Appeals, patent appeal no. 3693, in re Richfield Oil Company, trade mark for gasoline; brief for commissioner of patents.