CPC Subgroup
B21D 41/02 Enlarging
Full Title
Application of procedures in order to alter the diameter of tube ends (B21D39/00 takes precedence ) > Enlarging
3 direct subcodes
Child Classifications
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B21D 41/02 Application of procedures in order to alter the diameter of tube ends (B21D39/00 takes precedence ) > Enlarging
3 direct subcodes
Navigate with arrow keys, Enter to open