Mattullath, Hugo. In Court of Appeals of District of Columbia, Oct. term, 1916, patent appeal no. 1073, in re application of Meta Mattullath, administratrix of Hugo Mattullath, flying machines; brief for commissioner of patents.
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Mattullath, Hugo. In Court of Appeals of District of Columbia, Oct. term, 1916, patent appeal no. 1073, in re application of Meta Mattullath, administratrix of Hugo Mattullath, flying machines; brief for commissioner of patents.
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Mattullath, Hugo. In Court of Appeals of District of Columbia, Oct. term, 1916, patent appeal no. 1073, in re application of Meta Mattullath, administratrix of Hugo Mattullath, flying machines; brief for commissioner of patents.