DIFF Subgroup
F28D 7/14 both tubes being bent
Introduced: September 1968
Full Title
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 > both tubes being bent
No child classifications to compare. This is a leaf node in both IPC and CPC.