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jan 1, 1920 - Comparison Bridge Microscopes

Description:

A comparison microscope is a device used to observe side-by-side specimens. It consists of two microscopes connected to an optical bridge, which results in a split view window. This was created by American Army Colonel Calvin Goddard

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ByDean
3 Oct 2018
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Date:

jan 1, 1920
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~ 105 years ago

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