Volume 51, Issue 25
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Features
Hints to Inventors
The Delay of Business in the Patent Office
A Novel Table
Casing for Pipes
Automatic Game Counter
Automatic Alarm for Bearings
Frankel's Registering Dynamometer
Double Steam Hammer
The New Orleans Exposition
Improved Silo Press
A New Gas Engine
The Camel Corps of the British Army
Recent Decisions Relating to Patents - December 20, 1884
An Improved Speed Indicator
Engineering Inventions - December 20, 1884
Special - December 20, 1884
Agricultural Inventions - December 20, 1884
Miscellaneous Inventions - December 20, 1884
Foreign Patents - December 20, 1884
Their Cost Reduced