Inventions Practice Tests
Inventions Online Tests
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The MCQ: Periodic table was patented by a Russian Chemist named as; "Periodic Table" App Download (Free) with answers: Dmitri Mendeleev; Sir Henry W. Seelay; Sir Schuyler Skaats Wheeler; Sir Samuel W. Francis; for online elementary school classes. Solve Inventions and Inventors Quiz Questions, download Apple eBook (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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