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Evaluation of a signaling and warning system for underground mines
| Location | Call # | Status |
|---|---|---|
| Joyner - Microforms B300 | HE 20.7130:9641 | ✔ Available |
A comparison of mine fire sensors
| Location | Call # | Status |
|---|---|---|
| Joyner - Microforms B300 | I 28.23:9572 | ✔ Available |