Altenkirch, Edmund. In Court of Customs and Patent Appeals, patent appeal no. 4068, in re Edmund Altenkirch, drying apparatus; brief for commissioner of patents.
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Altenkirch, Edmund. In Court of Customs and Patent Appeals, patent appeal no. 4068, in re Edmund Altenkirch, drying apparatus; brief for commissioner of patents.
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Altenkirch, Edmund. In Court of Customs and Patent Appeals, patent appeal no. 4068, in re Edmund Altenkirch, drying apparatus; brief for commissioner of patents.