Lowry, Erwin F. In Court of Customs and Patent Appeals, patent appeal no. 3844, in re Erwin F. Lowry, thermionic cathodes; brief for commissioner of patents.
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Lowry, Erwin F. In Court of Customs and Patent Appeals, patent appeal no. 3844, in re Erwin F. Lowry, thermionic cathodes; brief for commissioner of patents.
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Lowry, Erwin F. In Court of Customs and Patent Appeals, patent appeal no. 3844, in re Erwin F. Lowry, thermionic cathodes; brief for commissioner of patents.