Inventions Practice Test 19
Electric Blanket Quiz Questions and Answers PDF - 19
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The Quiz: In which one of the following year, electric blanket was patented; "Electric Blanket" App Download (Free) with answers 1912, 1906, 1987 and 1974 for online elementary school classes. Solve inventions and inventors questions and answers, Amazon eBook to download free sample for school certificate.
Electric Blanket Questions and Answers PDF Download: Quiz 19
MCQ 91: In which one of the following year, electric blanket was patented?
- 1906
- 1912
- 1987
- 1974
MCQ 92: Automatic postal sorted that could handle 200,000 letters an hour was invented in
- 1927
- 1957
- 1928
- 1955
MCQ 93: The variable pitch aircraft propeller was invented by
- Sir Walter Rupert Turnbull
- Sir Lillian Moller Gilbreth
- Sir Nicholas Jacques Conte
- Sir John Patch
MCQ 94: In which one of the following year, the folding bed was invented?
- 1875
- 1876
- 1885
- 1880
MCQ 95: Plastic bottle makes was invented by
- Sir Gustave Cote
- Sir Joseph Nicephore
- Sir William Shockley
- John Loudon McAdam
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