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Contact lense MCQ App Download - Inventions PDF e-Book

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The MCQ: In 1888, which one of the following German ophthalmologists constructs the first contact lens "Contact lense" App Download [Free] with answers: sir zacharias janssen, sir john bardeen, sir adolf gaston, and sir thomas mead for online elementary school classes. Solve Inventions and Inventors Quiz Questions, download Apple e-Book (Free Sample) for school certificate.

Contact lense Questions and Answers PDF Download

MCQ: 1

In 1888, which one of the following German ophthalmologists constructs the first contact lens?

  1. Sir Zacharias Janssen
  2. Sir John Bardeen
  3. Sir Adolf Gaston
  4. Sir Thomas Mead

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