Skaupy, Franz. In Court of Customs and Patent Appeals, patent appeal no. 3174, in re Franz Skaupy and Hans Pulfrich, improvement in electric lighting tubes with carbonic acid filling; brief for commissioner of patents.
Publication Title:
Skaupy, Franz. In Court of Customs and Patent Appeals, patent appeal no. 3174, in re Franz Skaupy and Hans Pulfrich, improvement in electric lighting tubes with carbonic acid filling; brief for commissioner of patents.
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Skaupy, Franz. In Court of Customs and Patent Appeals, patent appeal no. 3174, in re Franz Skaupy and Hans Pulfrich, improvement in electric lighting tubes with carbonic acid filling; brief for commissioner of patents.