Wiener, Alfred E. In Court of Customs and Patent Appeals, patent appeal no. 2947, in re Alfred E. Wiener, constant level tobacco feed for cigarette machines; brief for commissioner of patents.
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Wiener, Alfred E. In Court of Customs and Patent Appeals, patent appeal no. 2947, in re Alfred E. Wiener, constant level tobacco feed for cigarette machines; brief for commissioner of patents.
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Wiener, Alfred E. In Court of Customs and Patent Appeals, patent appeal no. 2947, in re Alfred E. Wiener, constant level tobacco feed for cigarette machines; brief for commissioner of patents.