RU2032852C1
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Device for removal of sludge from vertical boiler
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SU1688058A2
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Air humidifier
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SU1688057A2
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Control system of air humidifier air supply
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SU1666851A2
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Boiler
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SU1603149A1
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Air shaft
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SU1702116A1
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Ventilation plant
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SU1663342A1
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Building heating system
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SU1634953A1
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Ventilation plant
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SU1569515A1
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Device for air humidifying
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SU1548620A1
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Heat-exchange apparatus
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SU1513309A2
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Device for removing slurry from boiler drum
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SU1499065A1
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System for water supply control for humidifier
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SU1488685A2
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Air humidifier
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SU1571391A1
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Heat exchanger
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SU1677452A1
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Boiling layer furnace
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SU1453144A1
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Waste-heat recovery unit
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SU1647210A1
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Device for adjustment of air flow rate
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SU1455127A1
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Furnace
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SU1383048A1
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Gas burner
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SU1483191A1
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Method and apparatus for heating ambient air in ventilation and air conditioning systems
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