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You searched for: Creator Personal Names Leonard, Joseph W. Remove constraint Creator Personal Names: Leonard, Joseph W. All Creators Holland, Charles T. Remove constraint All Creators: Holland, Charles T. Digital Content No Digital Content Remove constraint Digital Content: No Digital Content All Subjects Coal mine accidents--West Virginia. Remove constraint All Subjects: Coal mine accidents--West Virginia. All Subjects Coal--Research--West Virginia. Remove constraint All Subjects: Coal--Research--West Virginia. All Subjects Mine safety--West Virginia. Remove constraint All Subjects: Mine safety--West Virginia.

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