Geomagnograph: Difference between revisions

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A Geomagnograph was a device used by a group of Sea Devils for measuring the current flow the underwater. [[DW]]: [[Legend of the Sea Devils (TV story)]]
A Geomagnograph was a device used by a group of Sea Devils for measuring the current flow the underwater. [[TV]]: [[Legend of the Sea Devils (TV story)]]


[[Category:Technology]]
[[Category:Technology]]
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