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Lincoln 6 month s ago
#9. False. Romy and Michelle invented post it notes.
       
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Clarence 6 month s ago
Lincoln, This list has other problems as well.
       
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Light switches and zippers were both invented in 1917.

William J. Newton and Morris Goldberg patented wall light switches in 1917.

Giden Sundback patented the "separable fastener" in 1917, as well. The name "zipper" was popularized by B.F. Goodrich Company in 1923.

 

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These Unlikely Pairs Of Inventions Were Created The Same Year
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