Method and apparatus for restoring or enhancing an ambient magnetic field

Apparatus and method are provided for enhancing the earth's dc magnetic field ( 14 ) and/or for restoring the earth's dc magnetic field ( 14 ), when the earth's dc magnetic field ( 14 ) has been degraded by steel construction, or has been degraded by either an extra-low-frequency or a...

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Bibliographische Detailangaben
1. Verfasser: MILLER WENDELL E
Format: Patent
Sprache:eng
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