Two-leg longwall shield mechanics
| Main Author: | Barczak, Thomas M. |
|---|---|
| Other Authors: | Schwemmer, David E., United States. Bureau of Mines. |
| Format: | Microfilm |
| Language: | English |
| Published: |
Pittsburgh, PA. :
U.S. Dept. of the Interior, Bureau of Mines,
1989.
|
| Physical Description: |
ii, 34 pages : illustrations ; 28 cm. |
| Series: |
Report of investigations (United States. Bureau of Mines) ;
9220. |
| Subjects: |
CMU Storage Gov Pub Microfiche
| Location | Call Number: | Status |
|---|---|---|
| CMU Storage Gov Pub Microfiche | I 28.23:9220 | Available |