Who invented the pedal trash can and electric mixer and when?

Dr. Lillian Gilbreth invented the pedal trash and the electric mixer.

She was a pioneering efficiency expert and, incidentally, was also the mother in the book Cheaper by the Dozen, written by two of her 12 children.

who invented the pedal trash can and electric mixer and when scaled
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Karen Hill is a freelance writer, editor, and columnist for zippyfacts.com. Born in New York, she loves interesting random facts from all over the world.