Ayers, Augustine R. In Court of Appeals of District of Columbia, Apr. term, 1927, patent appeal no. 1981, in re Augustine R. Ayers, locomotive cylinder cocks; brief for commissioner of patents.
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Ayers, Augustine R. In Court of Appeals of District of Columbia, Apr. term, 1927, patent appeal no. 1981, in re Augustine R. Ayers, locomotive cylinder cocks; brief for commissioner of patents.
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Ayers, Augustine R. In Court of Appeals of District of Columbia, Apr. term, 1927, patent appeal no. 1981, in re Augustine R. Ayers, locomotive cylinder cocks; brief for commissioner of patents.