Inventions Practice Test 19
Electric Blanket Quiz Questions and Answers PDF - 19
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The Electric Blanket Quiz Questions and Answers PDF (Electric Blanket Quiz with Answers PDF e-Book) download Test 19 to learn inventions online courses. Practice Inventions and Inventors trivia questions, Electric Blanket Multiple Choice Questions (MCQ) for online college degrees. The Electric Blanket Quiz App Download: Free learning app for rotary blow molding machine, folding bed, variable pitch aircraft propeller, automatic postal sorter, electric blanket test prep for virtual online school.
The Quiz: In which one of following year, electric blanket was patented; "Electric Blanket" App Download (Free) with answers: 1912; 1906; 1987; 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
In which one of the following year, electric blanket was patented?
- 1906
- 1912
- 1987
- 1974
Automatic postal sorted that could handle 200,000 letters an hour was invented in
- 1927
- 1957
- 1928
- 1955
The variable pitch aircraft propeller was invented by
- Sir Walter Rupert Turnbull
- Sir Lillian Moller Gilbreth
- Sir Nicholas Jacques Conte
- Sir John Patch
In which one of the following year, the folding bed was invented?
- 1875
- 1876
- 1885
- 1880
Plastic bottle makes was invented by
- Sir Gustave Cote
- Sir Joseph Nicephore
- Sir William Shockley
- John Loudon McAdam
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