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Inventions MCQs – Certification Test 603

Straws MCQ (Question 603) – App & e-Book Download

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MCQ 603: Paper drinking straws were patented by:

  1. Sir Walter Wingfield
  2. Sir Marvin Stone
  3. Sir Walter Brattain
  4. Sir T.J Blachut
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8th Class Science Test Questions

8th Class Science Quiz with Answers