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Microscope
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1961 Rheinhold Rudenberg, inventor of electron microscope, dies
1940 1st electron microscope demonstrated (RCA), Philadelphia, Pa 1940 RCA demonstrated its new electron microscope in Philadelphia 1888 Frits Zernike, invented phase-contrast microscope, Nobel 1953 1723 Thonis van Leeuwenhoek, biologist/inventor (microscope), dies at 90 |
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