Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE19873715308external-prioritypatent/DE3715308A1/de
Application filed by Helio Folien GmbhfiledCriticalHelio Folien Gmbh
Application grantedgrantedCritical
Publication of ATE61991T1publicationCriticalpatent/ATE61991T1/de