Ocenco, Self-contained self-rescue devices, 1982

Ocenco, Self-contained self-rescue devices, 1982, Box: 12, Folder: 29. 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/111162 Accessed November 23, 2024.