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Invention:Revolver
Inventor:Samuel Colt
Purpose:The revolver could fire six times without reloading, which helped soldiers fend off larger forces.

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Invention:Vulcanization of Rubber
Inventor:Charles Goodyear
Purpose:The physical properties of natural or synthetic are improved; finished rubber has higher tensile strength to welling and abrasion.

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Invention:Saxophone
Inventor:Adophe Sax
Purpose:She wanted to combine the best characteristics of brass and woodwind instruments.

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Invention:Anesthesia
Inventor:Crawford Long
Purpose:It was used to prevent pain for the patient during a surgery.

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Invention:Ice Cream Maker
Inventor:Nancy Johnson
Purpose:Made to speed up the process of freezing an ice cream base.

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Invention:Rubber band
Inventor:Stephen Perry
Purpose:It was made to hold papers or envelopes together.

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Invention:Revolving Machine Gun
Inventor:Richard J. Gatling
Purpose:Reduces the size of armies and to reduce the number of deaths by combat and disease.

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Invention:Air Brake
Inventor:George Westinghouse
Purpose:Invented to make a safer venture and thus permitting trains at higher speeds.