00:00Philip B. Downing Inventor of the Street Letterbox
00:02One of the most important inventions he made was the street letterbox that he patented
00:07in the US under the patent numbers 462092 and 462093, and a mechanical switch control
00:15device he patented under the patent number 430118.
00:20Hey guys, don't forget to subscribe and smash that notification bell.
00:24Remember, a black man created the street letterbox called the mailbox today.
00:29Let's celebrate Black History Month together because we must learn.
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