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Heater
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Patent number 9,698,434
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Issue date Jul 4, 2017
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Delphi Technologies, Inc.
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Karl J. Haltiner
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E21 - EARTH DRILLING MINING
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Heater and method of operating
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Patent number 9,640,829
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Issue date May 2, 2017
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Delphi Technologies, Inc.
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Giulio A. Ricci-Ottati
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E21 - EARTH DRILLING MINING
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Heater
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Patent number 9,559,379
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Issue date Jan 31, 2017
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Delphi Technologies, Inc.
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Bernhard A. Fischer
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E21 - EARTH DRILLING MINING
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Method of operating a heater
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Patent number 9,531,020
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Issue date Dec 27, 2016
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Delphi Technologies, Inc.
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Bernhard A. Fischer
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E21 - EARTH DRILLING MINING
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Heater and method of operating
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Patent number 9,520,601
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Issue date Dec 13, 2016
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Delphi Technologies, Inc.
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Bernhard A. Fischer
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E21 - EARTH DRILLING MINING
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Heater and method of operating
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Patent number 9,494,024
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Issue date Nov 15, 2016
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Delphi Technologies, Inc.
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Bernhard A. Fischer
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E21 - EARTH DRILLING MINING
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Geothermic heater system
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Patent number 9,476,283
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Issue date Oct 25, 2016
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Delphi Technologies, Inc.
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Bernhard A. Fischer
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E21 - EARTH DRILLING MINING
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Heater and method of operating
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Patent number 9,328,596
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Issue date May 3, 2016
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Delphi Technologies, Inc.
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Bernhard A. Fischer
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E21 - EARTH DRILLING MINING
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