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Electric refrigeration unit MCQs App & e-Book: MCQ 550

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MCQ: 550

Electric refrigeration unit was patented by

  1. Sir Henry W. Seelay
  2. Sir Schuyler Skaats Wheeler
  3. Sir Nathaniel B. Wales
  4. Sir Gideon Sundback
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Electric refrigeration unit Competitive Exam: Inventions App & eBook MCQs

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