[n: Details For Track Selection Or Addressing] {g11b 5/49t} Patents (Class G9B/5.168)

[n: disposition of heads, e.g. matrix arrangement] {g11b 5/49t2} (Class G9B/5.169)

[n: structure of specially adapted switching heads (g9b/5.132 takes precedence)] {g11b 5/49t4} (Class G9B/5.17)

[n: circuits] {g11b 5/49t6} (Class G9B/5.171)

There are no patents to show for this class.