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Vented gas riser apparatus
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Patent number 7,931,306
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Issue date Apr 26, 2011
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Energy Control Systems, Inc.
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James M. Royston
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Vented gas riser apparatus
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Patent number 7,753,412
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Issue date Jul 13, 2010
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Energy Control Systems, Inc.
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James M. Royston
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Vented gas riser apparatus
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Patent number 7,740,284
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Issue date Jun 22, 2010
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Energy Control Systems, Inc.
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James M. Royston
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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86744459 - SINE SENTINEL
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Serial number 86744459
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Filing date Sep 1, 2015
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Energy Control Systems
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9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments