Schwartz, Joseph. In Court of Customs and Patent Appeals, patent appeal no. 3613, in re Schwartz and Ackley, method of and apparatus for making printing plates; brief for commissioner of patents.
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Schwartz, Joseph. In Court of Customs and Patent Appeals, patent appeal no. 3613, in re Schwartz and Ackley, method of and apparatus for making printing plates; brief for commissioner of patents.
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Schwartz, Joseph. In Court of Customs and Patent Appeals, patent appeal no. 3613, in re Schwartz and Ackley, method of and apparatus for making printing plates; brief for commissioner of patents.