[n: Recorded In Separate Tracks, E.g. Servo Tracks] {g11b 5/592a4} Patents (Class G9B/5.213)

Cross-Reference Art Collections

[n: helicoidal tracks] {g11b 5/592a4h} (Class G9B/5.214)
[n: longitudinal tracks] {g11b 5/592a4l} (Class G9B/5.215)

There are no patents to show for this class.