Jeffrey Elevating-conveying Power Transmission Machinery: Coal Mine Equipments
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Originally published in 1907, this catalog showcases the extensive line of coal mining equipment produced by the Jeffrey Manufacturing Company in Columbus, Ohio. From elevating-conveying machinery to power transmission equipment, this seminal work is an essential reference for anyone interested in the history of mining technology. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may f...
Originally published in 1907, this catalog showcases the extensive line of coal mining equipment produced by the Jeffrey Manufacturing Company in Columbus, Ohio. From elevating-conveying machinery to power transmission equipment, this seminal work is an essential reference for anyone interested in the history of mining technology. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
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