DIFF Main Group
B21C 9/00 Cooling, heating or lubricating drawing material (B21C3/14 takes precedence)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Cooling, heating or lubricating drawing material
CPC: Cooling, heating or lubricating drawing material (B21C3/14 takes precedence)
Full Title
Full titles differ between systems:
IPC:
Cooling, heating or lubricating drawing material
CPC:
Cooling, heating or lubricating drawing material (B21C3/14 takes precedence)
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
Child Classifications
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