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Improved “Dead-Center Lift”

Report of the Chief of the Bureau of Ordnance

The Plants and Animals of the Petroleum Rocks

Polytechnic Association of the American Institute

Turning Tools

Punched and Drilled Holes in Plates

New Books and Publications

Miscellaneous Summary

Recent American Patents

Dodge's Adjustable Caster for Sewing Machines

Special Notices

Notice to Subscribers


What is Utility

The Torpedo Ship

Steam on Common Roads

Patent Claims


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  • Notes & Queries

  • Patents

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January 14, 1865

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