Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics (1892)
Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 790
0.—\aiilt, fhfinical Bar.k. … Fig. 7.—Railroad iron vault.
Mechanical engineering
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