Nearly a century ago, Ernst Ruska and Max Knoll provided the first demonstration of a microscope that could image specimens using electrons rather than light. The earliest images obtained via this ...
General Phonograph Corporation, Manufacturers of Okeh Records, Records Catalogue, New York, New York
Warshaw Collection of Business Americana Subject Categories: Phonographs / 1: Manufacturers and Distributors of Phonographs and Records Funding for partial processing of the collection was supported ...
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