Philip B. Downing

Philip B. Downing (1857-1934)[2] was an American inventor from Newport, Rhode Island, best known for his patent on the modern day letter box.[3][4]

letter box
Philip B. Downing
BornMarch 22, 1857
Newport, Rhode Island [1]
Died1934
Boston, Massachusetts
NationalityAmerican
OccupationInventor
Known forPatent on the modern day letter box

References
  1. "PHILIP B. DOWNING DIES IN BOSTON: Native Newporter Was Many Years Employed in Boston Custom House". Newport (RI) Mercury. 8 June 1934. Retrieved 26 July 2020.
  2. Henry, Carma (26 October 2019). "Philip Bell Downing". Westside Gazette (Broward County Florida). Retrieved 26 July 2020.
  3. http://blackinventor.com/philip-downing/
  4. Walker, Eyvaine (2011). Keeping a Family Legacy Alive. Twins Publishing. p. 316.


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