Features
The International Patent Union
Hints to Inventors
Status of the Congressional Patent Bills
Aspects of the Planets for May - 1884
Guide Bar oiler
Head for Barrels, Casks, Etc
A New Fire Escape
Taking a Photograph by the Magnesium Light
Apparatus for Drying Fruit
Apparatus for Enlarging Microscopic Slides
An Industrial City.--Pullman, ILL
New Ore Elevator
To the Rescue of Lieut. Greely
Agricultural Inventions - May 3, 1884
Mechanical Inventions - May 3, 1884
Engineering Inventions - May 3, 1884
Miscellaneous Inventions - May 3, 1884
Departments
- Departments
Correspondence - May 3, 1884
Notes and Queries - May 3, 1884
Business and Personal - May 3, 1884
Index of Inventions - May 3, 1884