Cook, Walter. In Court of Customs and Patent Appeals, patent appeal no. 4683, in re Walter Cook, mining drill coupling; brief for commissioner of patents.
Publication Title:
Cook, Walter. In Court of Customs and Patent Appeals, patent appeal no. 4683, in re Walter Cook, mining drill coupling; brief for commissioner of patents.
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Cook, Walter. In Court of Customs and Patent Appeals, patent appeal no. 4683, in re Walter Cook, mining drill coupling; brief for commissioner of patents.