Samuel Clemens Leghorn — better known as Mark Twain — was a man of many trades besides writing, and one of his inventions is still with us today. Martin Fone explains more.
Mark Twain, Inventor! - Connecticut Explored
What Were Mark Twain's Inventions?
Mark Twain, Inventor! - Connecticut Explored
Mark Twain invented bra clasps.
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What Were Mark Twain's Inventions?