CPC Subgroup
F22B 37/248 Full Title
Component parts or details of steam boilers > applicable to more than one kind or type of steam boiler > Supporting, suspending or setting arrangements, e.g. heat shielding
F22B 37/248 Component parts or details of steam boilers > applicable to more than one kind or type of steam boiler > Supporting, suspending or setting arrangements, e.g. heat shielding