General & OtherExtracting final stump in pillars and pillar lifts with continuous minersR. Ward Stahl![Extracting final stump in pillars and pillar lifts with continuous miners]()
Extracting final stump in pillars and pillar lifts with continuous miners
R. Ward Stahl
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“Extracting final stump in pillars and pillar lifts with continuous miners” by R. Ward Stahl: a public-domain book in “General & Other”, written in English…
Catalogue details
- Author
- R. Ward Stahl
- Category
- General & Other
- Language
- English
- Source
- HathiTrust