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Polygraph MCQ: App Download (Free iOS Android) & e-Book

Inventions MCQ - Complete Course

Polygraph MCQ App & e-Book Download - 183

MCQ: 183

In which one of the following year, Polygraph was patented?

  1. 1965
  2. 1972
  3. 1918
  4. 1921

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Polygraph Learning App: Free Download Android & iOS

The App: Polygraph MCQ App to learn Polygraph Notes, General Knowledge MCQ App, and RF Electronics MCQ App. The "Polygraph MCQ" App to Free Download General Knowledge Apps (iOS & Android) includes complete analytics with interactive assessments. Download App Store & Play Store learning Apps & enjoy 100% functionality with subscriptions!

Polygraph  MCQ Apps (Android & iOS)

Polygraph MCQ App

General Knowledge  MCQ Apps (Android & iOS)

General Knowledge MCQ App

RF Electronics  MCQ Apps (Android & iOS)

RF Electronics MCQ App

Biochemistry  MCQ Apps (Android & iOS)

Biochemistry MCQ App