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.)
Etud SA
Original Assignee
Etud SA
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 Etud SAfiledCriticalEtud SA
Priority to FR7015150ApriorityCriticalpatent/FR2088807A6/fr
Priority to BE750530Dprioritypatent/BE750530A/xx
Priority to CH728070Aprioritypatent/CH512880A/fr
Priority to US40567Aprioritypatent/US3630140A/en
Priority to NL7007613Aprioritypatent/NL7007613A/xx
Priority to GB1289884Dprioritypatent/GB1289884A/en
Priority to JP45045271Aprioritypatent/JPS4922707B1/ja
Priority to DE19702026989prioritypatent/DE2026989C3/de
Application grantedgrantedCritical
Publication of FR2088807A6publicationCriticalpatent/FR2088807A6/fr