Swan, John W. in Court of Customs and Patent Appeals, patent appeal no. 2593, in re John W. Swan, manifolding 4-cylinder engines; brief for commissioner of patents.
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Swan, John W. in Court of Customs and Patent Appeals, patent appeal no. 2593, in re John W. Swan, manifolding 4-cylinder engines; brief for commissioner of patents.
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Swan, John W. in Court of Customs and Patent Appeals, patent appeal no. 2593, in re John W. Swan, manifolding 4-cylinder engines; brief for commissioner of patents.