Lewis, Arthur W. In Court of Customs and Patent Appeals, patent appeal no. 4201, in re Arthur Walther Lewis, lubricating oil and lubrication therewith; brief for commissioner of patents.
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Lewis, Arthur W. In Court of Customs and Patent Appeals, patent appeal no. 4201, in re Arthur Walther Lewis, lubricating oil and lubrication therewith; brief for commissioner of patents.
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Lewis, Arthur W. In Court of Customs and Patent Appeals, patent appeal no. 4201, in re Arthur Walther Lewis, lubricating oil and lubrication therewith; brief for commissioner of patents.