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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

Progress of Foreign Invention- March 11, 1871

Dyers' Recipes- March 11, 1871

Payne's Electro-Magnetic Motor

The Transmission of Power by Compressed Air

Effect of Cold Upon Iron and Steel

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

The Present and the Past- March 11, 1871

Death of Thomas Brassey, the Great English Railway Contractor

Queries- March 11, 1871

A Philanthropic Temperance Man

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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