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Selasa, 24 Oktober 2017

[Ans] Who invented the safety pin?

Question :


  1. Walter Hunt

  2. Susan Johnson

  3. Elias Howe

  4. Isaac Singer


Walter Hunt

Walter Hunt invented the safety pin. He first got the idea for the safety pin while nervously twisting a piece of wire. He was trying to think of something he could do that would allow him to pay off a $15 debt. He patented his safety pin invention in April 1849. He didn’t think the invention would ever amount to much and soon sold the patent for $400. Source:

[Ans] Who invented the safety pin? Rating: 4.5 Diposkan Oleh: Fatih

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