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Hand Drill, The Manufacture of Steel in Pittsburgh

Siemen's Furnace at Pittsburgh

The Way Rogers's Statuary is Made

Books and Publications

Farmers' Club

Special Notices

Recent American Patents

Standard Twist Drill

Improvements in the Steam Engine

Some Facts about Piano Making

Production of Light


Illustrations of the Patent Office Reports

Patent Claims

To Our Readers

Notice to Subscribers

Special Notice to Inventors


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