New inventions part 18 smart phones/GPS/USB/youth developers of India

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Added 4 years ago by Voyage

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hi guys welcome to youth developers of India its me harsh so guys in this video i am going to show you about three inventions which had changed the whole world . so guys the topics are
smart phones,GPS,USB this topic may or may not known for you after seeing the video you will know for about the subjects smart phones,GPS,USB so guys if you like this video then please like subscribe share and hit the bell icon .so guys the video about smart phones,GPS,USB will be useful for you so guys if you enjoy the video about smart phones,GPS,USB then please support us and help us to grow .so guys i am going to list the items what i had included in this video
1} smart phones
2} GPS
3} USB