File:Fig.1~Fig.12 and Koga's biography.pdf

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Fig.1~Fig.12_and_Koga's_biography.pdf(file size: 8.49 MB, MIME type: application/pdf)

Invention of Temperature-Insensitive Quartz Oscillation Plate Enabling Highly Stable Communications and Clocks, 1933: PDF file for figures used in the proposal and Koga'S short biography.

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