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 CH682682Aexternal-prioritypatent/CH644416A5/de
Priority claimed from CH566283Aexternal-prioritypatent/CH644417A5/de
Application filed by Poly Bauelemente AgfiledCriticalPoly Bauelemente Ag
Priority claimed from EP19840111324external-prioritypatent/EP0151684B1/de
Application grantedgrantedCritical
Publication of ATE25720T1publicationCriticalpatent/ATE25720T1/de