Which insurance salesman invented the fountain pen in 1884?
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Lewis Edson Waterman
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Sir William Grove
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Charles Kettering
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George Fountain
A
Correct answer
Explanation
Lewis Edson Waterman invented the practical fountain pen in 1884 after a leaking pen ruined an insurance contract, leading him to develop a reliable feed system. The other options are inventors of different technologies (grove: fuel cell, kettering: electric starter, fountain: not a real inventor).