CPC Subgroup
B22C 21/04 Upset frames; Bottom boards or mould boards (pattern plates B22C7/04)
Full Title
Flasks; Accessories therefor (stripping plates B22C17/06) > Upset frames; Bottom boards or mould boards (pattern plates B22C7/04)
1 direct subcode
Child Classifications
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- B22C 21/06 Bottom boards or mould boards