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Inventors & Inventions I  Dots & Dashes

Given the INVENTION, identify the INVENTOR(S)
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Enter in the box the number corresponding to the right answer
Bifocal Lens     1Fahrenheit
Safety Razor     2King C. Gillette
Gramophone     3Benjamin Franklin
Mercury Thermometer     4Thomas Alva Edison
Pneumatic Tyres     5John Boyd Dunlop

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