Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
CPC Subgroup
F22B 7/04

with auxiliary water tubes

Full Title

Steam boilers of furnace-tube type, i.e. the combustion of fuel being performed inside one or more furnace tubes built-in in the boiler body > with auxiliary water tubes

3 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

  • F22B 7/06 inside the furnace tube in transverse arrangements
  • F22B 7/08 inside the furnace tube in longitudinal arrangement
  • F22B 7/10 outside the boiler body