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Improvement on Iron Planers

Boring of Cylinders on a Lathe

Smith's New Club Skate

Manufacture of Soaps

Science Familiarly Illustrated

Manufacturing, Mining, and Railroad Items

Editorial Summary

Recent American and Foreign Patents

New Publications

Answers to Correspondents

Blaetterlein's Device for Inserting Lamp Wicks

Butler & Waring's Weather Strip for Doors and Windows

Spontaneous Combustion

What Shall be Done With Our Boys

Waste of Oil in Shops and Manufactories

Tungsten and Tungsten Steel

Patents and Claims

Issued by the United States Patent Office


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February 08, 1868

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