furnaces
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Electric phosphate smelting furnace used to make elemental phosphorus in a TVA chemical plant in the vicinity of Muscle Shoals, Alabama (LOC)
by The Library of Congress
by The Library of Congress
No known copyright restrictions(著作権制限なし)

Hanna furnaces of the Great Lakes Steel Corporation, Detroit, Mich. Coal tower atop coal ovens (LOC)
by The Library of Congress
by The Library of Congress
No known copyright restrictions(著作権制限なし)

Hanna furnaces of the Great Lakes Steel Corporation, Detroit, Mich. Coal tower atop coke ovens (LOC)
by The Library of Congress
by The Library of Congress
No known copyright restrictions(著作権制限なし)

Partly finished open hearth furnaces and stacks for a steel mill under construction which will soon be producing vitally needed steel, Columbia Steel Co., Geneva, Utah (LOC)
by The Library of Congress
by The Library of Congress
No known copyright restrictions(著作権制限なし)
841件~900件 (全 9,453件)