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PCE
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DIFF Subgroup
F23J 11/12

Smoke conduit systems for factories or large buildings

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Devices for conducting smoke or fumes, e.g. flues > Smoke conduit systems for factories or large buildings

CPC:

Devices for conducting smoke or fumes, e.g. flues (chimney stacks E04H12/28; removing cooking fumes from domestic stoves or ranges F24C15/20 ) > Smoke conduit systems for factories or large buildings

No child classifications to compare. This is a leaf node in both IPC and CPC.