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The electron microscope was invented in Germany during the 1930's by _____.

Anton van Leeuwenhoek
Robert Hooke
Hans and Zaccharias Janssen
Charles Spencer
Max Knott and Ernst Ruska
Spencer, maybe?

User IJK
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Answer is Max Knott and Ernst Ruska
User Shubham R
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Max Knoll and Ernst Ruska where the inventors of the electron microscope
Hope this helps :))
User Bsaverino
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