DIFF Subgroup
F22B 37/18 Inserts, e.g. for receiving deposits from water
Introduced: September 1968
Full Title
Component parts or details of steam boilers > applicable to more than one kind or type of steam boiler > Water tubes; Accessories therefor > Inserts, e.g. for receiving deposits from water
No child classifications to compare. This is a leaf node in both IPC and CPC.