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.)
Bochumer Eisenhuette Heintzmann GmbH and Co KG
Original Assignee
Bochumer Eisenhuette Heintzmann GmbH and Co KG
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 Bochumer Eisenhuette Heintzmann GmbH and Co KGfiledCriticalBochumer Eisenhuette Heintzmann GmbH and Co KG
Priority to ES454352ApriorityCriticalpatent/ES454352A1/es
Publication of ES454352A1publicationCriticalpatent/ES454352A1/es
ES454352A1976-12-171976-12-17Perfeccionamientos introducidos en una entibacion auxiliar para la zona de transicion entre tajo de mina y galeria.
ExpiredES454352A1
(es)
Perfeccionamientos introducidos en entramados desplazables de apuntalado para la excavacion yno el encofrado de la en- tibacion definitiva de galerias, tuneles, pozos u otras construcciones alargadas similares.