Inventions Practice Test 13
Letter Box Quiz Questions and Answers PDF - 13
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The Letter Box Quiz Questions and Answers PDF (Letter Box Quiz with Answers PDF e-Book) download Test 13 to learn inventions online courses. Practice Inventions and Inventors trivia questions, Letter Box Multiple Choice Questions (MCQ) for online college degrees. The Letter Box Quiz App Download: Free learning app for standard time, abdominizer, ceiling fan, revolver, letter box test prep for online school classes.
The Quiz: First letter-box was discovered by; "Letter Box" App Download (Free) with answers: Sir Albert Potts; Sir Jack Kilby; Sir Hans von Ohain; Alexander Fleming; for online learning. Solve inventions and inventors questions and answers, Amazon eBook to download free sample for online learning.
Letter Box Questions and Answers PDF Download: Quiz 13
The first letter-box was discovered by
- Sir Jack Kilby
- Sir Albert Potts
- Sir Hans von Ohain
- Alexander Fleming
The Revolver was invented by
- Sir Samuel Colt
- Dr Raymond Lemieux
- Sir Robert Fulton
- Dr Dennis Colonello
The ceiling fan was invented by an American electrical engineer named as
- Sir Nikola Tesla
- Sir Rudolf Diesel
- Sir Schuyler Skaats Wheeler
- Sir James Hillier
Infomercial exercise was invented by a renowned inventor named as
- Sir Norman Rolston
- Sirr James Naismith
- Dr Dennis Colonello
- Sir Thomas L. Wilson
Standard time was invented by
- Sir T.J Blachut
- Sir Cyril Duquet
- Sir Sanford Fleming
- Sir Reginald A. Fessenden
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