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 DE19823243120external-prioritypatent/DE3243120A1/de
Application filed by Emunds & Staudinger Gmbh & Co, Shorco Trench Systems LtdfiledCriticalEmunds & Staudinger Gmbh & Co
Priority claimed from EP83107270Aexternal-prioritypatent/EP0100083B1/de
Application grantedgrantedCritical
Publication of ATE22951T1publicationCriticalpatent/ATE22951T1/de