Q1. One of the most famous and prolific inventory VI
Alva Edison exerted a tremendous influence on modern life
contributing inventions such as the incandescent light bulb, the
phonogrph and the motion picture camera as well as improving
the telegraph and telephone. He held more than 1000 patents from
his invention. So here is a crossword puzzle for you to check your
knowledge that how much you know about him.
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