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Individual
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Individual
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Priority to ES128379ApriorityCriticalpatent/ES128379A3/en
Publication of ES128379A3publicationCriticalpatent/ES128379A3/en
ES128379A1932-10-221932-10-22
A new furnace for the low temperature distillation or carbonization of coal and other carbonaceous materials.
ExpiredES128379A3
(en)