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Inventions Exam Prep: Certification Test 137

Jigsaw Puzzles Learning App & e-Book: MCQ 137

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MCQ: 137

In which one of the following year, Jigsaw puzzles were patented?

  1. 1755
  2. 1785
  3. 1767
  4. 1725

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Jigsaw Puzzles Exam Prep: Inventions App & eBook Notes

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Jigsaw Puzzles Notes App (iOS & Android)

Jigsaw Puzzles Notes App

General Knowledge Notes App (Android & iOS)

General Knowledge Notes App

C++ Notes App (Android & iOS)

C++ Notes App

Basic Computer Knowledge Notes App (Android & iOS)

Basic Computer Knowledge Notes App