Skip to main content


The Laboratory and the Workshop

A Machine for Forming Projectiles

A Portable Grain Dump

An Improved Post Office Box

An Improved Wrench

The New American War Ship Olympia

The State Dam, Mohawk River, at Cohoes, N. Y.

The Photoret

The Traveling Garbage Burner of Chicago

The Burt Wooden Railway, California

To Inventors


  • Departments


  • Business and Personal

  • Recently Patented Inventions

  • Notes and Queries

  • Index of Inventions

  • Patents

Purchase To Read More

Already purchased this issue? Sign In to Access
Select Format
December 23, 1893

20% Sitewide for President's Day