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Pulse-width-regulating valve
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Patent number 9,909,674
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Issue date Mar 6, 2018
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Viking Heat Engines AS
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Harald Nes Risla
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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External heat engine device
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Patent number 9,874,175
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Issue date Jan 23, 2018
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Viking Heat Engines AS
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Harald Nes Rislå
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Combined power and heating station
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Patent number 9,222,360
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Issue date Dec 29, 2015
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Viking Heat Engines AS
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Trond Aas Bjerkan
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Thermodynamic cycle and heat engine
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Patent number 8,590,302
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Issue date Nov 26, 2013
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Viking Heat Engines AS
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Harald Risla Nes
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...