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Safe Mechanical Equipment for Use in Shaft Sinking
| Author: | Kudlich, R. H. |
|---|---|
| Year: | 1922 |
| Document Type: | N/A |
| SUDOC: | I 28.7:276 |
| Series: | United States Bureau of Mines Reports |
| Report Number: | Technical Paper 276 |
| Subject: | Shaft sinking. |
| Link: | http://digital.library.unt.edu/ark:/67531/metadc66480/ |
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