Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DR OTTO ALFRED BACKER
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DR OTTO ALFRED BACKER
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Filing date
Publication date
Priority claimed from DE19752513885external-prioritypatent/DE2513885C3/de
Priority claimed from DE19752555880external-prioritypatent/DE2555880C3/de
Application filed by DR OTTO ALFRED BACKERfiledCriticalDR OTTO ALFRED BACKER
Publication of ES446431A1publicationCriticalpatent/ES446431A1/es