DIFF Main Group
C21D 5/00 Heat treatments of cast-iron
Introduced: September 1968
Title
Titles differ between systems:
IPC: Heat treatment of cast-iron
CPC: Heat treatments of cast-iron
Full Title
Full titles differ between systems:
IPC:
Heat treatment of cast-iron
CPC:
Heat treatments of cast-iron
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
Child Classifications
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