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Inventors & Inventions III Dots & Dashes

Given the INVENTION, identify the INVENTOR(S)
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Enter in the box the number corresponding to the right answer
Fountain Pen     1Evangelista Torricelli
Printing Press     2Bardeen, Shockley, Brattain
Barometer     3Johann Gutenberg
Air Pump     4Lewis E. Waterman
Transistor     5Otto von Guericke

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