Print Bookmark

John Reuben Perkins

Male 1867 - 1868  (0 years)


Chart width:      Refresh

Timeline



 
 
 




   Date  Event(s)
1867 
  • 1867: Christopher Scholes invents the first practical and modern typewriter.
1868 
  • 1868: J P Knight invents traffic lights.
  • 1868: George Westinghouse invents air brakes.
  • 1868: Robert Mushet invents tungsten steel.