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Escalator MCQ (Multiple Choice Questions) PDF Download
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The Escalator Multiple Choice Questions (MCQ Quiz) with Answers PDF (Escalator MCQ PDF e-Book) download to practice Inventions Tests. Study Inventions and Inventors Multiple Choice Questions and Answers (MCQs), Escalator quiz answers PDF for online elementary school classes. The Escalator MCQ App Download: Free learning app for modern neuroscience, foot bag, post-it-note, a.c test prep for virtual online school.
The MCQ: In which one of the following year, escalator was patented; "Escalator" App Download (Free) with answers: 1891; 1997; 1899; 1893; for online elementary school classes. Solve Inventions and Inventors Quiz Questions, download Apple eBook (Free Sample) for school certificate.
Escalator MCQ (PDF) Questions Answers Download
Escalator was discovered by
- Sir Jesse Reno
- Sir Henry W. Seelay
- Sir Schuyler Skaats Wheeler
- Sir Samuel W. Francis
In which one of the following year, escalator was patented?
- 1891
- 1997
- 1899
- 1893
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