ES287510A1 - Improvements introduced in the manufacture of magnetic records (Machine-translation by Google Translate, not legally binding)
- Google Patents
Improvements introduced in the manufacture of magnetic records (Machine-translation by Google Translate, not legally binding)
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 ES287510ApriorityCriticalpatent/ES287510A1/en
Publication of ES287510A1publicationCriticalpatent/ES287510A1/en
Improvements introduced in the manufacture of magnetic records, comprising a base strip carrying a magnetic coating applied to one face of the same characterized in that said record has been produced by magnetically registering signal frequencies of a band of higher signal frequencies in a range of signal frequencies on the upper surface of said magnetic coating and magnetically registering signal frequencies of a lower signal frequency band in said range on the other side of said base strip, whereby the magnetic coating is registered separately the high and low frequency components. (Machine-translation by Google Translate, not legally binding)
ES287510A1960-05-021960-05-02Improvements introduced in the manufacture of magnetic records (Machine-translation by Google Translate, not legally binding)
ExpiredES287510A1
(en)