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Priority claimed from GB888812252Aexternal-prioritypatent/GB8812252D0/en
Priority claimed from GB888812253Aexternal-prioritypatent/GB8812253D0/en
Application filed by Caradon Heating LtdfiledCriticalCaradon Heating Ltd
Priority claimed from EP89305220Aexternal-prioritypatent/EP0343938B1/de
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Publication of ATE74418T1publicationCriticalpatent/ATE74418T1/de