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