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Steam trap monitoring
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Patent number 8,935,126
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Issue date Jan 13, 2015
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Armstrong International, Inc.
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David M. Armstrong
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Steam trap monitoring
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Patent number 7,702,484
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Issue date Apr 20, 2010
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Armstrong International, Inc.
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David M. Armstrong
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Remote monitor for steam traps
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Patent number 7,246,036
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Issue date Jul 17, 2007
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Armstrong International, Inc.
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Rex Cheskaty
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Steam humidifier system
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Patent number 5,516,466
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Issue date May 14, 1996
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Armstrong International, Inc.
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Ronald D. Schlesch
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F24 - HEATING RANGES VENTILATING
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Steam generator
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Patent number 5,337,703
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Issue date Aug 16, 1994
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Trouvay & Cauvin
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Ronald D. Schlesch
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F22 - STEAM GENERATION