CPC Main Group
B24B 39/00 Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone (modifying the physical properties or structure of metal by burnishing C21D7/08, C22F1/00); Accessories therefor
5 direct subcodes
Child Classifications
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- B24B 39/02 designed for working internal surfaces of revolution
- B24B 39/04 designed for working external surfaces of revolution
- B24B 39/06 designed for working plane surfaces