Inventions MCQs (Grade 8) From Textbook

Inventions Notes App Free Download | Walkies Talkies e-Book PDF

Inventions Entrance Exam: Certification Test 769

Walkies Talkies Notes App & e-Book: MCQ 769

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MCQ: 769

Walkies-Talkies were patented by

  1. Sir Nikola Tesla
  2. Sir Rudolf Diesel
  3. Sir Schuyler Skaats Wheeler
  4. Sir Donald L. Hings

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Walkies Talkies Textbook Tests: Inventions App & eBook Notes

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