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
Application filed by Nelva Pasqual Yves, Denis AlainfiledCriticalNelva Pasqual Yves
Priority claimed from EP86402164Aexternal-prioritypatent/EP0262275B1/en
Application grantedgrantedCritical
Publication of ATE52679T1publicationCriticalpatent/ATE52679T1/en