Hahn, Eugene. In Court of Customs and Patent Appeals, patent appeal no. 2888, in re Eugene Hahn, improvement in tank construction; brief for commissioner of patents.
Publication Title:
Hahn, Eugene. In Court of Customs and Patent Appeals, patent appeal no. 2888, in re Eugene Hahn, improvement in tank construction; brief for commissioner of patents.
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Hahn, Eugene. In Court of Customs and Patent Appeals, patent appeal no. 2888, in re Eugene Hahn, improvement in tank construction; brief for commissioner of patents.