Multiple choice general knowledge science & technology

Who invented First Practical Dish washer?

  1. Lyda Newman

  2. Josephine Garis Cochran

  3. Julie newmar

  4. Valerie Thomas
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Josephine Garis Cochran invented the first commercially successful hand-powered dishwasher in 1886. Lyda Newman is known for hairbrushes, and Valerie Thomas for the illusion transmitter. Julie Newmar is an actress, not an inventor.

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