औद्योगिक क्रान्ति के मध्य हुए तीन आविष्कारों का उल्लेख कीजिये। (UP BOARD 2016)
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Spinning jenny. Spinning jenny was a spinning engine invented in 1764 by James Hargreaves. ...
Newcomen steam engine. ...
Watt steam engine. ...
The locomotive. ...
Telegraph communications. ...
Dynamite. ...
The photograph. ...
The typewriter.
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