Inventions Practice Tests
Inventions Online Tests
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The MCQ: In which one of the following year, Jigsaw puzzles were patented; "Jigsaw Puzzles" App Download [Free] with answers: 1755, 1785, 1767, and 1725 for online elementary school classes. Solve Inventions and Inventors Quiz Questions, download Google eBook (Free Sample) for school certificate.
In which one of the following year, Jigsaw puzzles were patented?
Jigsaw Puzzles was invented by
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