DIFF Main Group
F28D 15/00 Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls
Introduced: September 1968
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1985.
Child Classifications
Navigate with arrow keys, Enter to open
- F28D 15/02 in which the medium condenses and evaporates, e.g. heat pipes since 1985 +11 CPC IPC+CPC Available in IPC and CPC