Skip to main content


Victor Bicycles

Position of the Planets in May

Rights of Employers to Inventions Made by their Employes

Proctor's Measuring Vessel

Prouty's Saw-Mill Dog

McBride's Observatory Sleeper

The "Florida" Heater for Soft Coal

Radley's Removable Sleigh-Runner

Boomer & Boschert Baling Presses

Desk Fan or Small Dental Motor

An Improved Velocipede

Scientific Diversions

The Mauser Magazine Rifle

Beautiful Example of Diffraction

By M. Hopkins

To Inventors- May 2, 1891


  • Letters

    Correspondence- May 2, 1891

  • Departments

    Business and Personal- May 2, 1891

  • Recently Patented Inventions- May 2, 1891

  • Notes and Queries- May 2, 1891

  • Index of Inventions- May 2, 1891

Purchase To Read More

Already purchased this issue? Sign In to Access
Select Format
Scroll To Top