Practice Class 8 MCQs From Textbooks
Download Inventions Notes App | Telephone Handset Book PDF
Inventions Cerification Guide: Mock Test 175
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The Quiz: In which one of following year, Telephone handset was discovered; "Telephone Handset" App (iOS, Android) with answers: 1816, 1845, 1808, and 1878 for online education. Study inventions and inventors questions and answers, Google eBook to download free chapter for online school and college.
In which one of the following year, Telephone handset was discovered?
In which one of the following year, integrated circuits were invented?
In which one of the following year, escalator was patented?
Super soaker was discovered by
The photo phone was invented by an American scientist named as
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