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OCR-text (abbyy)
Hedstrbm, Reimer
Phase measurements in electrical prospecting.
By Helmer Hedstrom.
8:o Stockholm 1951.
=Publication. The American institute of mining
and metallurgical engineers. Technical publica-
tion. No. 82?.
OCR-text (abbyy-crop)
Hedström, Helmer
Phase measurements in electrical prospecting.
By Helmer Hedström.
8:o Stockholm 1951.
-Publication . The American institute of mining
and metallurgical engineers. Technical publica-
tion. No. 827 .
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