-
Radon progeny monitor
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Patent number 7,312,439
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Issue date Dec 25, 2007
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Rad Elec Inc.
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Payasada Kotrappa
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G01 - MEASURING TESTING
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Radon monitor
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Patent number 4,926,053
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Issue date May 15, 1990
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Rad Elec., Inc.
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John C. Dempsey
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G01 - MEASURING TESTING
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Tagging explosives with sulfur hexafluoride
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Patent number 3,991,680
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Issue date Nov 16, 1976
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The United States of America as represented by the United States Energy Resea...
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Russell N. Dietz
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F42 - AMMUNITION BLASTING