Patents, Trade-marks and Copyrights: Law and Practice by Oscar A. Geier. The Laboratory Detective by Harry S. Pickering. 3 items., 1930, 1937

Patents, Trade-marks and Copyrights: Law and Practice by Oscar A. Geier. The Laboratory Detective by Harry S. Pickering. 3 items., 1930, 1937, Box: 185, Folder: 4. International Association for Identification Records, A&M 3518. West Virginia and Regional History Center. https://archives.lib.wvu.edu/repositories/2/archival_objects/45826 Accessed November 25, 2024.