Pelzer, Harry L. In Court of Customs and Patent Appeals, patent appeal no. 3869, in re Harry L. Pelzer, art of cracking hydrocarbons; brief for commissioner of patents.
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Pelzer, Harry L. In Court of Customs and Patent Appeals, patent appeal no. 3869, in re Harry L. Pelzer, art of cracking hydrocarbons; brief for commissioner of patents.
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Pelzer, Harry L. In Court of Customs and Patent Appeals, patent appeal no. 3869, in re Harry L. Pelzer, art of cracking hydrocarbons; brief for commissioner of patents.