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Improved Corn-husking Machine

Railroad Jack

Adulteration of Articles in General Use

Scientific Intelligence- March 11, 1871

Planking Screw

Improved Washing Machine

Rambles for Relics

Dyers' Recipes- March 11, 1871

Progress of Foreign Invention- March 11, 1871

Effect of Cold Upon Iron and Steel

The Transmission of Power by Compressed Air

Payne's Electro-Magnetic Motor

Death of Thomas Brassey, the Great English Railway Contractor

The Present and the Past- March 11, 1871

Mr. Cooper's Recent Gift to the Mechanics of New York

A Philanthropic Temperance Man

Queries- March 11, 1871

New Patent Law of 1870

Answers to Correspondents- March 11, 1871

Recent American and Foreign Patents- March 11, 1871

Official List of Patents- March 11, 1871


  • Letters

    Correspondence- March 11, 1871

  • Recommended

    New Books and Publications- March 11, 1871

  • Departments

    Business and Personal- March 11, 1871

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March 11, 1871

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