Federal Cement Tile Company. In Court of Customs and Patent Appeals, patent appeal no. 2977, in re Federal Cement Tile Company, trade-mark for roof slabs of concrete and analogous materials; brief for commissioner of patents.
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Federal Cement Tile Company. In Court of Customs and Patent Appeals, patent appeal no. 2977, in re Federal Cement Tile Company, trade-mark for roof slabs of concrete and analogous materials; brief for commissioner of patents.
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Federal Cement Tile Company. In Court of Customs and Patent Appeals, patent appeal no. 2977, in re Federal Cement Tile Company, trade-mark for roof slabs of concrete and analogous materials; brief for commissioner of patents.