Going up? Going down? He made elevators more secure with his invention of a safety brake
Since you have landed on this page then most probably you are looking for the Going up? Going down? He made elevators more secure with his invention of a safety brake answer. This question was last seen on June 2 2023 Jeopardy TV Game Show.
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For more questions from this episode visit Jeopardy June 2 2023 Answers