Explanation : On December 23, 1947, William Shockley, Walter Brattain and John Bardeen, of Bell Labs, announced their discovery of the point-contact germanium transistor to management.
Important Inventions and Discoveries in World » Exercise - 178. In which decade with the first transatlantic radio broadcast occur? (a) 1850s (b) 1860s (c) 1870s (d) 1900s
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