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Priority to DE19691946440priorityCriticalpatent/DE1946440A1/de
Application filedfiledCritical
Priority to NL6915530Aprioritypatent/NL6915530A/xx
Priority to FR6940137Aprioritypatent/FR2030657A1/fr
Priority to GB5944669Aprioritypatent/GB1258840A/en
Publication of NL6915530ApublicationCriticalpatent/NL6915530A/xx