Canadian mining journal January-June 1905 . Sullivan Rock Drills have balanced valves, securing wide range in length of stroke andforce of blow, powerful recovery and air economy. Catalogue 51. Sullivan Corliss Compressors for any pressure, capacity or power. Girder or tangye frames ;mechanically moved air inlet valves ; automatic poppet

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectminesandmineralresou