CPC Subgroup
B21D 37/04 Movable or exchangeable mountings for tools
Full Title
Tools as parts of machines covered by this subclass > Movable or exchangeable mountings for tools
1 direct subcode
Child Classifications
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- B21D 37/06 Pivotally-arranged tools, e.g. disengageable (die sets with dies pivoted to one another B21D37/12)