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Priority claimed from GB858500706Aexternal-prioritypatent/GB8500706D0/en
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Priority claimed from GB858507225Aexternal-prioritypatent/GB8507225D0/en
Priority claimed from GB858520129Aexternal-prioritypatent/GB8520129D0/en
Application filed by Brocock LimitedfiledCriticalBrocock Limited
Priority claimed from EP86300114Aexternal-prioritypatent/EP0189974B1/de
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Publication of ATE51959T1publicationCriticalpatent/ATE51959T1/de