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Application filed by Braas Italia S P A Ora LafargefiledCriticalBraas Italia S P A Ora Lafarge
Priority to ITMI972639priorityCriticalpatent/IT1296578B1/en
Publication of ITMI972639A1publicationCriticalpatent/ITMI972639A1/en
Application grantedgrantedCritical
Publication of IT1296578B1publicationCriticalpatent/IT1296578B1/en
ITMI9726391997-11-271997-11-27
PROCEDURE FOR THE CONSTRUCTION OF DOUBLE WALL PIPE COLLARS FOR SMOKE EVACUATION DUCTS AND SIMILAR AND RELATED COLLAR
IT1296578B1
(en)