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Improved Bolt Cutter

Puddling Iron by Machinery

Application of the Spectral Analysis to Astronomical Phenomena

How American Locomotives are Made

Foreign Summary

Market for the Month

Harper's Gas Lighter

Apprentices and Journeymen

Increase of Wealth

Renewal of the Winooski and Algon Quin Trial

Why Rents Are So High

Grave Charges against the American Institute

Recent American Patents

Patent Claims

Issued from the U. S. Patent Office

Patent Agency Office


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