Minor Revision Change and Documentation Update Pertaining to CSE's Model AU-9A1 Self-Rescuer, Approval #TC-13F-101, 1981

Minor Revision Change and Documentation Update Pertaining to CSE's Model AU-9A1 Self-Rescuer, Approval #TC-13F-101, 1981, Box: 30, Folder: 33. J. Davitt McAteer Papers regarding Mining Safety, A&M 4219. West Virginia and Regional History Center. https://archives.lib.wvu.edu/repositories/2/archival_objects/111704 Accessed October 26, 2024.