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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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 Minnesota Mining and Manufacturing CofiledCriticalMinnesota Mining and Manufacturing Co
Priority to ES0080587UpriorityCriticalpatent/ES80587U/en
Publication of ES80587UpublicationCriticalpatent/ES80587U/en
A magnetic register comprising a strip of magnetic material having signal frequencies in a higher band of signal frequencies in a range of signal frequencies magnetically recorded on one side of the strip, and having signal frequencies of a frequency band of the lowest signal in said range recorded magnetically by the other side of said strip. (Machine-translation by Google Translate, not legally binding)
ES0080587U1960-05-021960-05-02A magnetic record (Machine-translation by Google Translate, not legally binding)
PendingES80587U
(en)
Improvements introduced in the manufacture of covers for objects in the form of discs or plate (Machine-translation by Google Translate, not legally binding)