United States. Patent Office & Fischer, A. C. (1929). In U.S. Court of Customs and Patent Appeals, patent appeal No. 2629, in re Albert C. Fischer, roofing shingles, slates and tiles, and their method of application in combination with prepared foundation sheets, marked, blank, and offset; brief for Commissioner of Patents. U.S. Government Printing Office.
Chicago Style (17th ed.) CitationUnited States. Patent Office and Albert C. Fischer. In U.S. Court of Customs and Patent Appeals, Patent Appeal No. 2629, in Re Albert C. Fischer, Roofing Shingles, Slates and Tiles, and Their Method of Application in Combination with Prepared Foundation Sheets, Marked, Blank, and Offset; Brief for Commissioner of Patents. [Washington?]: U.S. Government Printing Office, 1929.
MLA (9th ed.) CitationUnited States. Patent Office and Albert C. Fischer. In U.S. Court of Customs and Patent Appeals, Patent Appeal No. 2629, in Re Albert C. Fischer, Roofing Shingles, Slates and Tiles, and Their Method of Application in Combination with Prepared Foundation Sheets, Marked, Blank, and Offset; Brief for Commissioner of Patents. U.S. Government Printing Office, 1929.