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Jerome Alonzo Perkins

Male 1852 -


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Timeline

1868
1868
1868
1868
1868
1868
1


 
 




   Date  Event(s)
1 1868 
  • 1868: J P Knight invents traffic lights.
  • 1868: George Westinghouse invents air brakes.
  • 1868: Robert Mushet invents tungsten steel.

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