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 FR8317577Aexternal-prioritypatent/FR2554633B1/en
Application filed by Siproc Soc Int Promot CommfiledCriticalSiproc Soc Int Promot Comm
Application grantedgrantedCritical
Publication of ATE37117T1publicationCriticalpatent/ATE37117T1/en