File:Reference 4 Quartz R1-cut Japanese rev1.pdf

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Invention of Temperature-Insensitive Quartz Oscillation Plate Enabling Highly Stable Communications and Clocks, 1933: PDF file of Reference 4 (in Japanese) of the list of significant references.

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current03:12, 10 January 2016 (183 KB)R1CUTQUARTZ (talk | contribs)Invention of Temperature-Insensitive Quartz Oscillation Plate Enabling Highly Stable Communications and Clocks, 1933: PDF file of Reference 4 (in Japanese) of the list of significant references.
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