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Application filed by Greiner S P A Lumezzane S S BrfiledCriticalGreiner S P A Lumezzane S S Br
Priority to IT8921823ApriorityCriticalpatent/IT1231039B/en
Publication of IT8921823A0publicationCriticalpatent/IT8921823A0/en
Application grantedgrantedCritical
Publication of IT1231039BpublicationCriticalpatent/IT1231039B/en
IT8921823A1989-09-251989-09-25
BALL VALVE DEVICE WITH CONNECTION FLANGE FOR THE PRODUCTION OF JUNCTION SOCKETS ON PIPES, PARTICULARLY GAS PIPES AND SIMILAR.
IT1231039B
(en)