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Margaret Knight
Paper bag manufacturing
- Can you imagine what grocery shopping would be like if you
had to carry envelope-shaped paper bags?
- She received her first patent when she was thirty for a machine
that would make the square bottoms of paper bags.
- She watched people hand make flat bottom bags and thought to
herself "There has to be a way to make that happen with a
machine."
- She developed that idea and after a man tried to steal her
idea, she won a court battle giving her the patent in 1870.
- Learn more about Margaret's life as a girl inventor
here.
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