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CANOVAS DEL CASTILLO SEBASTIAN
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CANOVAS DEL CASTILLO SEBASTIAN
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Application filed by CANOVAS DEL CASTILLO SEBASTIANfiledCriticalCANOVAS DEL CASTILLO SEBASTIAN
Priority to ES0307748ApriorityCriticalpatent/ES307748A1/en
Publication of ES307748A1publicationCriticalpatent/ES307748A1/en
IMPROVEMENTS IN PILOTING MACHINES, essentially characterized by the fact of establishing for the tower a constitution based on two parallel vertical columns with arched braces placed horizontally in sections, on the lower side, to leave free all the central space between columns, for passage of the drill pipes, as well as the concrete loading wagon and pilot armor. (Machine-translation by Google Translate, not legally binding)
ES0307748A1964-12-311964-12-31Improvements in pilotage machines. (Machine-translation by Google Translate, not legally binding)
ExpiredES307748A1
(en)