When was the toothbrush invented?

More Questions from Inventions

• What office item was invented by Bette Nesmith Graham in 1951?
• In which decade was the telephone invented?
• In which decade was the SPICE simulator introduced?
• In which decade was the telegraph invented?
• In which decade was the first solid state integrated circuit demonstrated?
• What treat was invented by 11-year-old Frank Epperson in 1905?
• This African-American woman physical therapist worked with soldiers disabled in World War II. She invented a device that helped the disabled to eat by delivering food through a tube to a mouthpiece.
• What African-American inventor received 5 patents in the field of shoemaking?
• In the 1700s, who would pay the postage fee for letters before the stamp was invented?
• Ralph Samuelson was only 18 when he invented this sporting item in 1922. What was that?

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