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 FR8103926Aexternal-prioritypatent/FR2500892A1/fr
Priority claimed from FR8109206Aexternal-prioritypatent/FR2505417A2/fr
Application filed by Leduc Rene Hydro SafiledCriticalLeduc Rene Hydro Sa
Priority claimed from EP82400344Aexternal-prioritypatent/EP0060181B1/de
Application grantedgrantedCritical
Publication of ATE18933T1publicationCriticalpatent/ATE18933T1/de