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Sequencing valve and hydronic system
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Patent number 7,353,843
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Issue date Apr 8, 2008
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Hays Fluid Controls, a division of ROMAC Industries, Inc.
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Ben G. Arrowood, Jr.
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Sequencing valve and hydronic system
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Patent number 6,983,764
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Issue date Jan 10, 2006
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Hays Fluid Controls, a division of ROMAC Industries, Inc.
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Ben G. Arrowood, Jr.
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...