Kesling, Elmer G. In Court of Customs and Patent Appeals, patent appeal no. 4531, in re Elmer G. Kesling, gear shifting mechanism; brief for commissioner of patents.
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Kesling, Elmer G. In Court of Customs and Patent Appeals, patent appeal no. 4531, in re Elmer G. Kesling, gear shifting mechanism; brief for commissioner of patents.
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Kesling, Elmer G. In Court of Customs and Patent Appeals, patent appeal no. 4531, in re Elmer G. Kesling, gear shifting mechanism; brief for commissioner of patents.