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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Individual
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Individual
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Publication date
Application filed by IndividualfiledCriticalIndividual
Priority to ES66883ApriorityCriticalpatent/ES66883A1/en
Publication of ES66883A1publicationCriticalpatent/ES66883A1/en
ES66883A1918-04-241918-04-24
Combined spark and feedwater heater / economizer system with water cooling for locomotives and similar machines.
ExpiredES66883A1
(en)