Champeau, Lawrence X. In Court of Appeals of District of Columbia, Apr. term [1928], patent appeal no. 2126, in re Lawrence X. Champeau, devices for artificial illumination; brief for commissioner of patents.
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Champeau, Lawrence X. In Court of Appeals of District of Columbia, Apr. term [1928], patent appeal no. 2126, in re Lawrence X. Champeau, devices for artificial illumination; brief for commissioner of patents.
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Champeau, Lawrence X. In Court of Appeals of District of Columbia, Apr. term [1928], patent appeal no. 2126, in re Lawrence X. Champeau, devices for artificial illumination; brief for commissioner of patents.