The credit of inventing the protective public mailbox(letter-box) goes to the Philip B. Downing, who was from Boston, Massachusetts, had been awarded a U.S. patent(No.462,093) for animprovement to the street letter (mail) box on Oct. 27, 1891.
http://www.briskinfo.com/inventions/who-invented-street-letter-drop-mailbox.html
The credit of inventing the protective public mailbox(letter-box) goes to the Philip B. Downing, who was from Boston, Massachusetts, had been awarded a U.S. patent(No.462,093) for animprovement to the street letter (mail) box on Oct. 27, 1891.
http://www.briskinfo.com/inventions/who-invented-street-letter-drop-mailbox.html
Boston, Massachusetts
Tobacco
1848.
Mary Downing Hahn was born in 1937.
britan and amercan b/c they had to grown and make their own supplies to do the weaving
Philip downing invented the mailbox
what was Philip b downing death. and what year he died
yes
an electrical switch for railroads
Boston, Massachusetts
September 3,1871
February 20 1850
oct. 24 , 2009
Philip B. Downing was likely educated in public schools in the United States during the late 19th century when he was growing up. He may have also received further education in design and invention through apprenticeships or specialized courses.
yes
He invented the street letter drop mail box with a door to keep the mail safe.
Philip Emeagwali did not invent the computer