Magnetic record medium and method of recording and reproducing security information on and from the same
A Standard patent application filed on 23 March 1989 credited to Fujita, Minoru
Details
Application number :
31646
Application type :
Standard
Application status :
CEASED
Under opposition :
No
Proceeding type :
Invention title :
Magnetic record medium and method of recording and reproducing security information on and from the same