CPC Subgroup
F28D 9/02 the heat-exchange media travelling at an angle to one another (F28D9/04 takes precedence)
Full Title
Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall > the heat-exchange media travelling at an angle to one another (F28D9/04 takes precedence)