A WEEKLY JOURNAL OF PRACTICAL INFORMATION ART SCIENCE MECHANICS CHEMISTRY AND MANUFACTURES. Vol. 20. Improved Carriage and Car Spring. The Present Yield of Gold. DOUGLAS'S CARRIAGE AND CAR SPRING. .P, scientific american, 1865-11-11
A WEEKLY JOURNAL OF PRACTICAL INFORMATION ART SCIENCE MECHANICS CHEMISTRY AND MANUFACTURES. Vol. 20. Improved Carriage and Car Spring. The Present Yield of Gold. DOUGLAS'S CARRIAGE AND CAR SPRING. .P, scientific american, 1865-11-11
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