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Application filed by Gd SpafiledCriticalGd Spa
Priority to IT8703508ApriorityCriticalpatent/IT1207720B/it
Publication of IT8703508A0publicationCriticalpatent/IT8703508A0/it
Priority to GB8717869Aprioritypatent/GB2195926B/en
Priority to US07/080,778prioritypatent/US4865679A/en
Priority to DE3725833Aprioritypatent/DE3725833A1/de
Application grantedgrantedCritical
Publication of IT1207720BpublicationCriticalpatent/IT1207720B/it