advanced search
Sponsorship: Armour Research Foundation United States Patent
Reversible Drive for a Magnetic Recording Medium
Camras, Marvin
1947-04-08
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/10560/49
2,418,541