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Inventions App's Tests

Inventions e-Book's MCQs - Complete

Negative photograph MCQs App Free Download & e-Book - 437

MCQ:

In which one of the following year, negative photograph was patented?

  1. 1856
  2. 1823
  3. 1840
  4. 1877

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Negative photograph Learning App: Free Download Android & iOS

The App: Negative photograph MCQs App to learn Negative photograph Textbook, General Knowledge MCQs App, and HTML MCQs App. The "Negative photograph MCQs" App to free download iOS & Android Apps includes complete analytics with interactive assessments. Download App Store & Play Store learning Apps & enjoy 100% functionality with subscriptions!

Negative photograph App (Android & iOS)

Negative photograph App (Android & iOS)

General Knowledge App (Android & iOS)

General Knowledge App (iOS & Android)

HTML App (Android & iOS)

HTML App (Android & iOS)

ARM Processors App (Android & iOS)

ARM Processors App (iOS & Android)