jtimiijfr mzxiim THE ADVOCATE OF INDUSTRY, AND JOURNAL OF SCIENTIFIC, MECHANICAL AND OTHER IMPROVEMENTS. i NUMBER'41. VOLUME IX.1 NEW-YORK JUNE 24, 1854. … of moral and scientific progress. The annexed figures represent an improve- column is bored out to receive the solid piston, cured to it. D, which fits easily therein, and forms the tool ment in Slotting Machines for cutting key With this, machine Mr. Williams has cut a Not all Gold that Glitters.…
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