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.)
Ampex Corp
Original Assignee
Ampex Corp
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 US137680Aexternal-prioritypatent/US3213192A/en
Application filed by Ampex CorpfiledCriticalAmpex Corp
Priority to FR909129ApriorityCriticalpatent/FR1342194A/fr
Application grantedgrantedCritical
Publication of FR1342194ApublicationCriticalpatent/FR1342194A/fr