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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Babcock Woodall Duckham Ltd
Original Assignee
Woodall Duckham Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Woodall Duckham LtdfiledCriticalWoodall Duckham Ltd
Priority to ES0143547ApriorityCriticalpatent/ES143547A2/es
Publication of ES143547A2publicationCriticalpatent/ES143547A2/es
ES0143547A1937-03-201937-03-20MEJORAS EN LA CONSTRUCCIoN DE RETORTAS VERTICALES PARA DESTILACIoN DE HULLA Y OTROS MATERIALES CARBONOSOS
ExpiredES143547A2
(es)
PERFECCIONAMIENTOOS EN LOS PROCEDIMIENTOS Y DISPOSITIVOS DE CARBONIZACIoN Y DESTILACION EN LOS HORNOS DE PASILLO, DE ESQUISTOS, LIGNITOS, HULLAS Y MATERIALES ANALOGOS