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Features

Improved Furnace

Counter-Weighting Machinery

New Publications

Foreign Summary

Woodworth's Carriage Jack

Goodfellow's Piston Packing

The Practical Valve Of Agricultural Chemistry

Fire-Proof Workshops

Remarks on the Commissioner of Patent's Report

Launch of Winans's Fourth Cigar Steamer

Patent Claims

Issued from the U. S. Patent Offic

Departments

  • Departments

    Notes and Queries

  • Correspondence

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