Features
Daniel Davis
Sea Lions in Central Park
The Celestial World
The Conjunction of Saturn and Delta Geminorum
New, Process for the Protection of Iron
The Designs for U. S. War Vessels
Decisions Relating to Patents - April 23, 1887
Improved Pan Lifter
Combined Tablet, Paper Weight, and Blotter
Improved Pen Holder Tip
Improved Stove
Improved Wagon Rack
Double Air Chamber Furring Tile
Lewis Tent Pole and Ventilator
Safety Set Screw for Collars and Pulleys
Connection Hanger for Electrotyping Apparatus
Improved Cash Carrier
James Buchanan Eads
Improved Compound Steam Engine
Improved Iron Planer
Agricultural Inventions - April 23, 1887
Miscellaneous Inventions - April 23, 1887
Engineering Inventions - April 23, 1887
To Inventors - April 23, 1887
Departments
- Letters
Correspondence - April 23, 1887
- Recommended
New Books and Publications - April 23, 1887
- Departments
Notes and Queries - April 23, 1887
Business and Personal - April 23, 1887
Index of Inventions - April 23, 1887
Patents
