Babcock, Earl. In Court of Customs and Patent Appeals, patent appeal no. 4304, in re Earl Babcock, room cooling device; brief for commissioner of patents.
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Babcock, Earl. In Court of Customs and Patent Appeals, patent appeal no. 4304, in re Earl Babcock, room cooling device; brief for commissioner of patents.
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Babcock, Earl. In Court of Customs and Patent Appeals, patent appeal no. 4304, in re Earl Babcock, room cooling device; brief for commissioner of patents.