Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Hannoversche Maschinenbau AG
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Hannoversche Maschinenbau AG
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Publication date
Application filed by Hannoversche Maschinenbau AGfiledCriticalHannoversche Maschinenbau AG
Application grantedgrantedCritical
Publication of FR690320ApublicationCriticalpatent/FR690320A/fr
F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
F23L13/00—Construction of valves or dampers for controlling air supply or draught
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Engineering & Computer Science
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Chemical & Material Sciences
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Combustion & Propulsion
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Mechanical Engineering
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General Engineering & Computer Science
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FR690320D1930-02-201930-02-20Dispositif pour régler l'échappement des gaz chauds dans les foyers de chaudières à vapeur
ExpiredFR690320A
(fr)