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Improved Printing Press, The Pistons of Portable Engines, and more

Miscellaneous Summary

New York Markets

The Waterbury Brass Mills

Discoveries and Inventions Abroad

Valuable Receipts

Chromium in the Arts

Notes on the Natural Phenomena of Florida

Compound Cylinder Engines

The Tax on Manufacturers

Cotton Gins and Ginning

Recent American Patents

The Annual Exhibition of the Academy of Design

Patent Claims

Issued from the United States Patent Office

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