Creveling, John L. In Court of Appeals of District of Columbia, Jan. term, 1917, patent appeal no. 1102, in re John L. Creveling, electric lighting systems; brief for commissioner of patents.
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Creveling, John L. In Court of Appeals of District of Columbia, Jan. term, 1917, patent appeal no. 1102, in re John L. Creveling, electric lighting systems; brief for commissioner of patents.
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Creveling, John L. In Court of Appeals of District of Columbia, Jan. term, 1917, patent appeal no. 1102, in re John L. Creveling, electric lighting systems; brief for commissioner of patents.