Engelhardt, Alfred. In Court of Customs and Patent Appeals, patent appeals nos. 2249 and 2753, in re Alfred Engelhardt, process for separating organic gases or vapors of organic products; brief for commissioner of patents.
Publication Title:
Engelhardt, Alfred. In Court of Customs and Patent Appeals, patent appeals nos. 2249 and 2753, in re Alfred Engelhardt, process for separating organic gases or vapors of organic products; brief for commissioner of patents.
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Engelhardt, Alfred. In Court of Customs and Patent Appeals, patent appeals nos. 2249 and 2753, in re Alfred Engelhardt, process for separating organic gases or vapors of organic products; brief for commissioner of patents.