Utility
Subclass Subgroup Patent
D06F 58/24 12168849
F41G 11/003 12169116
G06F 3/0608 12169629
  3/0659 12169648
  12/1009 12169458
G11C 7/109 12170127
  11/40615 12170107
  16/102 12170113
H01L 23/5386 12170250
  25/18 12170275
  29/517 12170324
  33/62 12170348
H03M 13/154 12170531
H10B 43/40 12171101