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Improved Elevated Atmospheric Railway

A New Navy

Miscellaneous Summary

New Publications

Holt and Thompson's Improved Oiler

Protecting Buildings Against Lightning

Rain Gages and Rain Fall

Elevated Railway for New York City

Subdivision of Labor

Counseling Our Enemies

Patent Claims

Issued from the U. S. Patent Office

An Abattoir for New York

Elliott's Sash Support

Bailey's Churn


  • Correspondence

  • Departments

    New Inventions

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