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Timeline of united states inventions (before 1890)Www.mit.eduTimeline of united states inventions (before 1890)
Www.mit.eduTimeline of united states inventions (before 1890)Www.mit.edu







  • Www.mit.edu

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  • Timeline of united states inventions (before 1890)

    In 1641, the first patent in north america was issued to samuel winslow by the general court of massachusetts for a new method of making salt. on april 10, 1790, president george washington signed the patent act of 1790 (1 stat. 109) into law proclaiming that patents were to be authorized for "any useful art, manufacture, engine, machine, or device, or any improvement therein not before known ...

  • Www.mit.edu

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  • Www.mit.edu

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  • Timeline of united states inventions (before 1890)

    In 1641, the first patent in north america was issued to samuel winslow by the general court of massachusetts for a new method of making salt. on april 10, 1790, president george washington signed the patent act of 1790 (1 stat. 109) into law proclaiming that patents were to be authorized for "any useful art, manufacture, engine, machine, or device, or any improvement therein not before known ...

  • Timeline of united states inventions (before 1890)

    In 1641, the first patent in north america was issued to samuel winslow by the general court of massachusetts for a new method of making salt. on april 10, 1790, president george washington signed the patent act of 1790 (1 stat. 109) into law proclaiming that patents were to be authorized for "any useful art, manufacture, engine, machine, or device, or any improvement therein not before known ...