Mine pager to public telephone interconnect system /
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| Main Author: | |
|---|---|
| Corporate Author: | |
| Format: | Unknown |
| Language: | English |
| Published: |
[Washington] :
U.S. Dept. of the Interior, Bureau of Mines,
[1974].
|
| Series: | Report of investigations (United States. Bureau of Mines) ;
7976 |
| Subjects: | |
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MARC
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| 100 | 1 | 0 | |a Parkinson, Howard E. |
| 245 | 1 | 0 | |a Mine pager to public telephone interconnect system / |c by Howard E. Parkinson. |
| 260 | 0 | |a [Washington] : |b U.S. Dept. of the Interior, Bureau of Mines, |c [1974]. | |
| 300 | |a 14 p. : |b ill. | ||
| 490 | 1 | |a Report of investigations ; |v 7976 | |
| 650 | 0 | |a Telephone in mining. | |
| 650 | 0 | |a Mine communications systems. | |
| 710 | 2 | 0 | |a United States. |b Bureau of Mines. |
| 810 | 2 | 0 | |a United States. |b Bureau of Mines. |t Report of investigations ; |v 7976 |
| 830 | 0 | |a Report of investigations (United States. Bureau of Mines) ; |v 7976 | |
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