Class 8 Online Courses

Inventions App's Tests

Inventions e-Book's MCQs - Complete

Bar Code App Quiz Download & e-Book - 404

MCQ:

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

Inventions App & e-Book Tests PDF Download

Bar Code Textbook App: Free Download iOS & Android

The App: Bar Code Quiz App to study Bar Code Textbook, General Knowledge Quiz App, and Marine Pollution Quiz App. The "Bar Code Quiz" App to free download Android & iOS Apps includes complete analytics with interactive assessments. Download App Store & Play Store learning Apps & enjoy 100% functionality with subscriptions!

Bar Code App (Android & iOS)

Bar Code App (Android & iOS)

General Knowledge App (Android & iOS)

General Knowledge App (iOS & Android)

Marine Pollution App (Android & iOS)

Marine Pollution App (Android & iOS)

Fluid Mechanics App (Android & iOS)

Fluid Mechanics App (iOS & Android)