DIFF Subgroup
F25D 17/04 for circulating air, e.g. by convection
Introduced: September 1968
Title
Titles differ between systems:
IPC: for circulating gas, e.g. by natural convection
CPC: for circulating air, e.g. by convection
Full Title
Full titles differ between systems:
IPC:
Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces > for circulating gas, e.g. by natural convection
CPC:
Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces > for circulating air, e.g. by convection
Of 2 combined children, 1 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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