DK1282C
(en)
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Automatic Feeder for simultaneous Purification and Preheating of the Feed Water for Steam Boilers.
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DK4389C
(en)
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Preheater and Purifier for the Feed Water for Steam Boilers.
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DK1025C
(en)
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Method and device for using the combustion products of a steam boiler for preheating the feed water by means of a certain amount of clean water.
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DK1085C
(en)
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Apparatus for automatic regulation of the feed at the steam boiler system.
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DK1098C
(en)
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Automatic feed water regulator.
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DK378C
(en)
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Feed water preheater for steam boilers.
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DK2670C
(en)
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Automatic Feeder for Steam Boilers.
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CA73847A
(en)
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Feed water heater for steam boilers
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DK562C
(en)
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Apparatus for supplying high-pressure steam engine boilers with purified and preheated feed water.
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CH15929A
(en)
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Automatic firearm
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CH15810A
(en)
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Water heating device for cookers
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CA58388A
(en)
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Water purifier for steam boilers
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GB189623777A
(en)
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Apparatus for Automatically Regulating the Supply of Feed Water to Steam Boilers and for Heating, and Purifying such Feed Water.
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CA57630A
(en)
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Grate for steam boilers
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DK1169C
(en)
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Steam boiler system.
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DK1498C
(en)
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Food water purifier for steam boilers.
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DK4186C
(en)
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Purifier for Water Pipes in Steam Boilers.
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FR383396A
(en)
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Feed water heater for boilers
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GB190402543A
(en)
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Improvements in Apparatus for Direct Contact Steam Heating of Feed Water of Steam Boilers.
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DK1131C
(en)
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Stirring boiler for rapid evaporation of the water.
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CA72164A
(en)
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Water feed for boilers
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DK490C
(en)
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Apparatus for knocking off boiler stones in cooking pipes.
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CH411E
(en)
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Automatic firearm
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CA55512A
(en)
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Water tube boiler
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CA53368A
(en)
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Hot water boiler
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