DIFF Subgroup
H01F 27/2455 Full Title
Details of transformers or inductances, in general > Magnetic cores > made from sheets, e.g. grain-oriented (H01F27/26 takes precedence)
H01F 27/2455 Details of transformers or inductances, in general > Magnetic cores > made from sheets, e.g. grain-oriented (H01F27/26 takes precedence)