Heinz, William V. In Court of Appeals of District of Columbia, Oct. term, 1909, patent appeal, no. 595, in re Heinz, improvements in wall ties; brief for commissioner of patents.
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Heinz, William V. In Court of Appeals of District of Columbia, Oct. term, 1909, patent appeal, no. 595, in re Heinz, improvements in wall ties; brief for commissioner of patents.
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Heinz, William V. In Court of Appeals of District of Columbia, Oct. term, 1909, patent appeal, no. 595, in re Heinz, improvements in wall ties; brief for commissioner of patents.