High production continuous miners operating in 34-120 inch coal seams
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| Description | conference proceedings item published in 1988 |
| Author/s |
author: Jon C. Volkwein |
| Publication date | August 23, 1988 |
| Language | English |
| Country of origin | |
| Wikipedia link | |
| Copyright status | |
| Missing/wrong data? | Edit Wikidata item |