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Priority claimed from GB35589/77Aexternal-prioritypatent/GB1588595A/en
Application filed by Ideal StandardfiledCriticalIdeal Standard
Publication of IT7846881A0publicationCriticalpatent/IT7846881A0/it
Application grantedgrantedCritical
Publication of IT1104867BpublicationCriticalpatent/IT1104867B/it