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Category:Electromagnetic devices

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A 1997 photo of an electromagnetic detection instrument, designed to locate rebars in concrete for quality control inspections - Image by Marie Ennis, P.E, the National Park Service, and Preservapedia.
A 1997 photo of an electromagnetic detection instrument, designed to locate rebars in concrete for quality control inspections - Image by Marie Ennis, P.E, the National Park Service, and Preservapedia.

Media in category "Electromagnetic devices"

This category contains only the following file.