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Spectograph Learning App Download | Inventions PDF e-Book

Inventions Study Material: Certification Test 327

Spectograph MCQ App Download & e-Book - 327

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MCQ: 327

Which one of the following received a patent for the far ultraviolet camera?

  1. Sir Walter Wingfield
  2. Sir George Carruthers
  3. Sir Walter Brattain
  4. Sir T.J Blachut

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