He is also noted to be the inventor of the electrical switch for railroads which operators used to control the timing of trains. His design paved the way for what we now use in light switches in the home.
Sunday, February 2, 2014
African American Inventors: Mail box - Paul L. Downing
Isn't it great that in order to get our mail, all we have to do is walk a few steps to our mailbox and just pick it up? Well, we can thank inventor Paul L. Downing for his contribution to the mailbox.
Downing patented his metal box design as the "Street Letter Box" in October 27, 1891, today we can say his designs fathered the many modern mailboxes we have today.
He is also noted to be the inventor of the electrical switch for railroads which operators used to control the timing of trains. His design paved the way for what we now use in light switches in the home.
He is also noted to be the inventor of the electrical switch for railroads which operators used to control the timing of trains. His design paved the way for what we now use in light switches in the home.
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