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NEGUERUELA FERNANDEZ
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NEGUERUELA FERNANDEZ
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Application filed by NEGUERUELA FERNANDEZfiledCriticalNEGUERUELA FERNANDEZ
Priority to ES402921ApriorityCriticalpatent/ES402921A1/es
Publication of ES402921A1publicationCriticalpatent/ES402921A1/es
Improved apparatus constituted by an articulated stand suitable for use in the laying into or the recovery from a trench dug in the ground of a pipeline