IPC Subgroup
B22C 21/04 Upset frames; Bottom boards or mould boards
Introduced: September 1968
Last revised: January 2006
Full Title
Flasks; Accessories therefor > Upset frames; Bottom boards or mould boards
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- CASTING; POWDER METALLURGY
- Subclass:
- FOUNDRY MOULDING
1 direct subcode
Child Classifications
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- B22C 21/06 Bottom boards or mould boards