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Intrinsically safe electromagnetic devices |
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Beacon-based geolocation using a low frequency electromagnetic field |
Benjamin P. Dolgin, Clayton Davis, James C. Zellner |
2018-08-14 |
| 9755765 |
Magnetic antennas for ultra low frequency and very low frequency radiation |
Benjamin P. Dolgin, James C. Zellner |
2017-09-05 |
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Mine personnel carrier integrated information display |
Aaron A. Renner, Luis Giraldo |
2014-10-21 |
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Search and rescue using ultraviolet radiation |
John George Witzel, Benjamin P. Dolgin, Michael Andrew Brennan, Jorge L. Gutierrez, William Suliga |
2012-08-28 |
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Positioning, detection and communication system and method |
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2011-12-06 |
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Positioning system and method |
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2011-09-13 |
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Centralizer-based survey and navigation device and method |
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2011-01-18 |
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Centralizer-based survey and navigation device and method |
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2009-09-08 |