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Apparatus for Mines & Petroleum Wells

Recent English Patents

Polytechnic Association of the American Institute

Miscellaneous Summary

Recent American Patents

Farmers' Club

Western Correspondence

Another Application of Dialysis

Books and Publications

Graperies and Horticultural Buildings

Pickering's Governor

The Art of Observation

Petroleum for Steam Ships

Leather Bands

Letters From the People

Patent Claims

Issued from the United States Patent-Office


  • Departments


  • Notes and Queries

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