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Nathaniel Pratt

Male 1757 - 1817  (59 years)


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Timeline

1924
1924
1924
1924
1924
1924
1


 
 




   Date  Event(s)
1 1924 
  • 1924: The dynamic loudspeaker invented by Rice and Kellogg.
  • 1924: Notebooks with spiral bindings invented.

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