Rubel, Charles F. In Court of Customs and Patent Appeals, patent [appeal] no. 5180. in re Charles F. Rubel, sewing machines; brief for commissioner of patents.
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Rubel, Charles F. In Court of Customs and Patent Appeals, patent [appeal] no. 5180. in re Charles F. Rubel, sewing machines; brief for commissioner of patents.
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Rubel, Charles F. In Court of Customs and Patent Appeals, patent [appeal] no. 5180. in re Charles F. Rubel, sewing machines; brief for commissioner of patents.