DIFF Subgroup
F22D 1/22 and provided for rotary movements
Introduced: September 1968
Title
Titles differ between systems:
IPC: and provided for rotary movement
CPC: and provided for rotary movements
Full Title
Full titles differ between systems:
IPC:
Feed-water heaters, e.g. preheaters > with water tubes arranged otherwise than in the boiler furnace, fire tubes, or flue ways > and provided for rotary movement
CPC:
Feed-water heaters, i.e. economisers or like preheaters > with water tubes arranged otherwise than in the boiler furnace, fire tubes, or flue ways > and provided for rotary movements
No child classifications to compare. This is a leaf node in both IPC and CPC.