73393870
Sep 29, 1982
Sep 18, 1984
Process and Test Instrumentation and Apparatus for Blank and Prerecorded Magnetic Recording Media-Namely, Diskette Certifying and Sorting Units, Light Transmission Testers for Testing Pigmentation of Disks, Diskette Formatting and Duplicating Units, Diskette Wear Testers; Magnetic Media Demagnetizers and Disk Drive Testers
Electrical and Scientific Apparatus