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• Comparison of rotary and in-hole motor techniques for drilling horizontal boreholes in coal
• Shield-loading studies at an eastern Appalachian minesite
• Accurate directional borehole drilling :a case study at the Navajo Dam, New Mexico
• In-mine test of the Bureau of Mines preproduction wireless survey system
• Determining the source of longwall gob gas :Lower Kittanning Coalbed, Cambria County, PA