Who invented the vacuum pump?

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Who invented the vacuum pump?

Asked on 2018-01-25 09:30:27 by Guest | Votes 0 | Views: 35 | Tags: discoveries and inventions | ssc cgl tier 1 06 08 2017 shift 3 | ssc cgl tier 1 | ssc cgl | general knowledge | ssc cgl tier 1 2017 | ssc cgl 2017 | Add Bounty

Who invented the vacuum pump?
1). Otto von Guericke
2). Cai Lun
3). Melitta Bentz
4). William Henry Fox Talbot

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1 answers

1 vote

Answered by Guest on 2018-01-26 23:10:26 | Votes 1 | #

This question was asked some where in previous year papers of ssc, and correct answer was option 1

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