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The MCQ: In which one of the following year, periodic table was patented "Periodic Table" App Download [Free] with answers: 1854, 1847, 1869, and 1880 for online elementary school classes. Solve Inventions and Inventors Quiz Questions, download Apple e-Book (Free Sample) for school certificate.
In which one of the following year, periodic table was patented?
Periodic table was patented by a Russian Chemist named as
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