File:Photographies of Koga's research group and the main building of Tokyo Institute of Technology.pdf

From IEEE Milestones Wiki

Invention of Temperature-Insensitive Quartz Oscillation Plate Enabling Highly Stable Communications and Clocks, 1933: Photographies of Koga's research group and the main building of Tokyo Institue of Technology.

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeDimensionsUserComment
current01:43, 11 January 2016 (147 KB)R1CUTQUARTZ (talk | contribs)Invention of Temperature-Insensitive Quartz Oscillation Plate Enabling Highly Stable Communications and Clocks, 1933: Photographies of Koga's research group and the main building of Tokyo Institue of Technology.

There are no pages that use this file.