Who is O. Dorsey?


O. Dorsey, is Osbourn Dorsey, who invented the door knob or door handle. He was an African American inventor. The first documented invention of the door knob shows up in U.S. Patent entries in 1878. There was a patent issued to Osbourn Dorsey for the improvement on a door-closing device. The use of door knobs goes back into the 18th century. Door handles are used on all types of doors including entrance, privacy, passage, and dummy doors.
Q&A Related to "Who is O. Dorsey?"
A musical artist.
Not sure this is the definitive answer but, scroll down to the section under Sponsors on this site and read about Dorsey's comment to Dom: http://www.iosdevcamp.org. /.
nobody knows.
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