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Sponsorship: Armour Research Foundation United States Patent
Method and Means of Magnetic Recording
Camras, Marvin
1944-06-13
United States Patent
Patent
application/pdf
Armour Research Foundation
Open Access
No Copyright - United Stateshttp://rightsstatements.org/page/NoC-US/1.0/
http://hdl.handle.net/10560/33
2,351,004