The Truth Mirror
In next video i will tell you about Who invented telegraph?? Which is first ever communication system used in the world with the help of electromagnetism.
6 years ago | [YT] | 8
@subhamkiexperiment9499
Shampoo
6 years ago | 0
The Truth Mirror
In next video i will tell you about Who invented telegraph?? Which is first ever communication system used in the world with the help of electromagnetism.
6 years ago | [YT] | 8