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Frictional Ignition of Natural Gas-air Mixtures by Alternative Coal-cutter Bit Shank Materials
Language: en
Pages: 24

Frictional Ignition of Natural Gas-air Mixtures by Alternative Coal-cutter Bit Shank Materials

Authors: L. Garner McDonald
Categories: Coal-cutting bits
Type: BOOK - Published: 1992 - Publisher:

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Frictional Ignition of Natural Gas-air Mixtures by Alternative Coal-cutter Bit Shank Materials
Language: en
Pages: 24

Frictional Ignition of Natural Gas-air Mixtures by Alternative Coal-cutter Bit Shank Materials

Authors: L. Garner McDonald
Categories: Coal-cutting bits
Type: BOOK - Published: 1992 - Publisher:

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Report of Investigations
Language: en
Pages: 376

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Authors:
Categories: Mineral industries
Type: BOOK - Published: 1992 - Publisher:

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New Publications
Language: en
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Authors: United States. Bureau of Mines
Categories: Mineral industries
Type: BOOK - Published: 1987 - Publisher:

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Effects of Horizontal Stress Related to Stream Valleys on the Stability of Coal Mine Openings
Language: en
Pages: 516

Effects of Horizontal Stress Related to Stream Valleys on the Stability of Coal Mine Openings

Authors:
Categories: Coal mines and mining
Type: BOOK - Published: 1992 - Publisher:

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