"R. J. Stern Co., Inc. … advancing the health and safety of underground miners."; "R. J. Stern Company (Logan, W. Va.)"; "R. J. Stern Company (Logan, W. Va.)"; "Coal mines and mining--Equipment and supplies--Catalogs."; "R. J. Stern Company (Logan, W. Va.)"; "undated"; "

Catalog.

"; ""; "P13713"; "pec"; "R. J. Stern Company (Logan, W. Va.)", "Coal mines and mining--Equipment and supplies--Catalogs."; "14256"; .