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Inventions Quiz App | Slide rule e-Book PDF Download

Inventions Learning Guide: Certification Test 476

Slide rule Quiz App Download & PDF e-Book - 476

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MCQ: 476

Circular and rectangular slide ruler was invented by

  1. Sir Walter Brattain
  2. Sir T.J Blachut
  3. Sir William Oughtred
  4. Sir Walter Wingfield
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Slide rule Learning Guide: Inventions App & eBook Quiz

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8th Class Science Test Questions

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