Stewart, Thomas W.
unknown · Contribution: 1893
Improved mop with a clamping head and lever-operated wringer, plus a detachable/replaceable mop head

Portraits are AI-generated interpretations, not photographs.
Impact on the world
Introduced lever-wringing and detachable-head mechanisms still found in modern mops; among the first African Americans awarded a patent.
Life & background
African-American inventor from Kalamazoo, Michigan.
Sources
- U.S. patent record; SamePassage; ThoughtCo; CMM
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