Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
F28D 7/12

the surrounding tube being closed at one end, e.g. return type (F28D7/14 takes precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: the surrounding tube being closed at one end, i.e. return type

CPC: the surrounding tube being closed at one end, e.g. return type (F28D7/14 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall > the conduits being arranged one within the other, e.g. concentrically > the surrounding tube being closed at one end, i.e. return type

CPC:

Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall > the conduits being arranged one within the other, e.g. concentrically > the surrounding tube being closed at one end, e.g. return type (F28D7/14 takes precedence)

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