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Features

Improved Canal Boat

Papier Mache for Interior Decoration

Crackers and their Manufacture

The Progress of Fish Culture in New York

The Mosquito Illustrated

Something about Pipes

The English Building Trade Lock-Out

Corn Husker and Picker

Combined Flask and Whisk

Improved Ellipsograph

Progress of the Eight Hour Strike in New York

A Plea for Common Sense

Letters from Professor Thurston

Letter from Professor R. H. Thurston

Design Patents to Foreigners

The East River Bridge

The Newark Industrial Exhibition

New Patent Law in Canada - July 13, 1872

Recent American and Foreign Patents - July 13, 1872

Departments

  • From the Editor

    Answers to Correspondents - July 13, 1872

  • Letters

    Correspondence - July 13, 1872

  • Recommended

    New Books and Publications - July 13, 1872

  • Departments

    Business and Personal - July 13, 1872

  • Notes and Queries - July 13, 1872

  • Index of Inventions - July 13, 1872

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