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Inventions Quiz e-Book PDF | Bar Code App Download

Inventions Learning Guide: Certification Test 404

Bar Code Quiz App Download & PDF e-Book - 404

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MCQ: 404

The first patent for bar code was issued by

  1. Sir Joseph Woodland Bernard
  2. Sir Samuel W. Francis
  3. Sir Stephen Poplawski
  4. Sir Louis Braille
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Bar Code Learning Guide: Inventions App & eBook Quiz

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Bar Code Quiz App (iOS & Android)

Bar Code Quiz App

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General Knowledge Quiz App

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Microelectronics Quiz App (Android & iOS)

Microelectronics Quiz App

General Knowledge MCQs e-Book Download

General Knowledge e-Book PDF

General Knowledge MCQ e-Book PDF

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8th Class Science Test Questions

8th Class Science Quiz with Answers