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General Knowledge MCQs – Certification Test 305

Headset Invention Trivia (Question 305) – App & e-Book Download

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MCQ 305: First headset was invented by Nathaniel Baldwin in:

  1. 1905
  2. 1908
  3. 1910
  4. 1912
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Headset Invention Trivia App Download: iOS & Android Apps

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