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Features

The Driven Well System of the Brooklyn Water Works

The Tehuantepec Ship Railway

Shop Common Sense

Licenses for Small Steamboats

Decisions Relating to Patents

Supreme court of the United States. PRESTON v. MANARD et al.

Gasometer

Time Calculator

Combined Spring Bed and Fire Escape

A Novel Barrel Head

Mixing and Vaporizing Device for Inhalers

Steam Disinfecter for Use in Hospitals

The "Champion" Keyless Locks

Astronomical Photography

A Railway Safety Switch

A Natural Gab Well

Agricultural Inventions - April 10, 1886

Engineering Inventions - April 10, 1886

Special - April 10, 1886

Miscellaneous Inventions - April 10, 1886

To Inventors - April 10, 1886

Departments

  • Letters

    Correspondence - April 17, 1886

  • Recommended

    New Books and Publications - April 10, 1886

  • Departments

    Business and Personal - April 10, 1886

  • Notes and Queries - April 10, 1886

  • Index of Inventions - April 10, 1886

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