Volume 8, Issue 23
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Features
Discoveries and Inventions Abroad
Miscellaneous Summary
Curious Inventions of Ancient Times
Valuable Receipts
The Value of Small Patents
Fisher's Patent Horse Collar
Auto-Typography
Working-Beam Engines
Strike at Eminence!
The Construction of Armor Steamships
A Demand for Improvements-Bring Out Your Inventions!
Double-Screw Steamers
Cryolite--Aluminum Minerals
Magnetic Storms
Patent Claims
Issued from the United States Patent Office