[PDF] Falls Of Roof And Coal In Mines Operating In The Sewickley Coal Bed In Monongalia County W Va Full Read

Language: en
Pages: 36

Authors: James Washington Paul

Categories: Coal mine accidents

Type: BOOK - Published: 1932 - Publisher:

Language: en
Pages: 31

Authors: James W. Paul

Categories:

Type: BOOK - Published: 1932 - Publisher:

Language: en
Pages:

Authors: James Washington Paul

Categories:

Type: BOOK - Published: 1932 - Publisher:

Language: en
Pages:

Authors: United States. Bureau of Mines

Categories:

Type: BOOK - Published: 1932 - Publisher:

Language: en
Pages: 46

Authors: James Washington Paul

Categories: Coal mine accidents

Type: BOOK - Published: 1932 - Publisher: