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Features

Review of the Year 1906

An Interesting Process for Avoiding Sponginess in Heavy Steel Castings

By L. Ramakers

Speed Trials of the Battleship "Vermont".

The Manufacture of Steel Pens

By L. A. Hawkes

A Church Blown up by Natural Gas.

A Novel Door Lock

Wheel-Flange Oiler

Hand-Operated Shaper

Departments

  • Departments

    The Heavens in January

  • Notes and Queries

  • Recently Patented Inventions

  • Index of Inventions

  • Patents

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January 05, 1907

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