Legal status (The legal status 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 status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rech S & De Perfectionnements
Original Assignee
Rech S & De Perfectionnements
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 Rech S & De PerfectionnementsfiledCriticalRech S & De Perfectionnements
Application grantedgrantedCritical
Publication of FR794348ApublicationCriticalpatent/FR794348A/fr