Waldron, Frederic B. In Court of Appeals of District of Columbia, Jan. term, 1929, patent appeal no. 2318, in re Frederic Barnes Waldron, grinding and polishing plates of glass and apparatus therefor; brief for commissioner of patents.
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Waldron, Frederic B. In Court of Appeals of District of Columbia, Jan. term, 1929, patent appeal no. 2318, in re Frederic Barnes Waldron, grinding and polishing plates of glass and apparatus therefor; brief for commissioner of patents.
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Waldron, Frederic B. In Court of Appeals of District of Columbia, Jan. term, 1929, patent appeal no. 2318, in re Frederic Barnes Waldron, grinding and polishing plates of glass and apparatus therefor; brief for commissioner of patents.