Mine pager to public telephone interconnect system / by Howard E. Parkinson.
By: Parkinson, Howard E.
Contributor(s): United States. Bureau of Mines.
Series: United States. Report of investigations: 7976; Report of investigations (United States. Bureau of Mines): 7976Publisher: [Washington] : U.S. Dept. of the Interior, Bureau of Mines, [1974]Description: 14 p. : ill.Subject(s): Telephone in mining | Mine communications systems| Item type | Current location | Home library | Collection | Shelving location | Call number | Status | Date due | Barcode |
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Vertical Files
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Matheson Library | Matheson Library | Vertical Files | Vertical Files | 622.06173 P247m (Browse shelf) | Available | 082227 |
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