Below you will find the solution for: In 1880 this was a gleam in the eye of William Sawyer & Albon Man; they filed a patent on it & got into years of struggle with Edison Jeopardy .
Since you already solved the question In 1880 this was a gleam in the eye of William Sawyer & Albon Man; they filed a patent on it & got into years of struggle with Edison which had the answer A LIGHT BULB, you can simply go back at the main post to check the other answers. You can do so by clicking the link here Jeopardy July 18 2019
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