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PCE
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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)