Inventions Trivia App | Study Telephone Switching Machine Trivia e-Book PDF
Inventions MCQs (Grade 8) From Textbook

Inventions MCQs – Certification Test 717

Telephone Switching Machine Trivia (Question 717) – App & e-Book Download

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MCQ 717: Computerized telephone switching machine was discovered by:

  1. Sir William kennedy Dickson
  2. Sir John Barber
  3. Sir Blaise Pascal
  4. Sir Erna Hoover
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Inventions Trivia App & e-Book – Telephone Switching Machine Certification Guide

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Telephone Switching Machine Trivia App Download: iOS & Android Apps

Telephone Switching Machine Trivia App

General Knowledge Trivia App Download: Android & iOS Apps

General Knowledge Trivia App

Marine Pollution Trivia App Download: Android & iOS Apps

Marine Pollution Trivia App

Basic Anthropology Trivia App Download: Android & iOS Apps

Basic Anthropology Trivia App

General Knowledge MCQs e-Book Download

General Knowledge e-Book PDF

General Knowledge MCQ e-Book PDF

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Telephone Switching Machine Apps (Android & iOS)

8th Class Science Test Questions

8th Class Science Quiz with Answers