Volume 10, Issue 20
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Features
Annual Report of the Commissioner of Patents
Foreign Intelligence
The Discoveries of 1863
Polytechnic Association of the American Institute
Morley's Noiseless Cog-Wheel
Great Improvement in Feeding Armies
The Daily Press and Mechanical Reports
The Chenango Boiler Explosion
Hap-Hazard
A Plea for Inventors
On Boiling Water
Special Notice
Recent American Patents
New Books and Publications
Patent Claims
Issued From The United States Patent-Office