Wessblad, Karl A. In Court of Customs and Patent Appeals, patent appeal, no. 2930, in re Karl Alexander Wessblad, refrigerating apparatus; brief for commissioner of patents.
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Wessblad, Karl A. In Court of Customs and Patent Appeals, patent appeal, no. 2930, in re Karl Alexander Wessblad, refrigerating apparatus; brief for commissioner of patents.
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Wessblad, Karl A. In Court of Customs and Patent Appeals, patent appeal, no. 2930, in re Karl Alexander Wessblad, refrigerating apparatus; brief for commissioner of patents.