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KRINGS J
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KRINGS J
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Priority claimed from DE2302053Aexternal-prioritypatent/DE2302053C3/en
Application filed by KRINGS JfiledCriticalKRINGS J
Application grantedgrantedCritical
Publication of AU6419474ApublicationCriticalpatent/AU6419474A/en
Publication of AU488894B2publicationCriticalpatent/AU488894B2/en