DIFF Subgroup
F23J 13/04 Joints; Connections
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Fittings for chimneys or flues > Joints; Connections
CPC:
Fittings for chimneys or flues (side-supporting means for chimney stacks E04H12/20; ladders permanently attached to chimneys E06C9/00; draught-inducing apparatus associated with chimneys or flues F23L17/00; tops for chimneys, terminals for flues F23L17/02) > Joints; Connections
No child classifications to compare. This is a leaf node in both IPC and CPC.