DIFF Main Group
B24B 27/00 Other grinding machines or devices
Introduced: September 1968
CPC subdivides this area 4x more granularly than IPC with 12 additional codes.
12 codes are CPC-only extensions.
Child Classifications
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- B24B 27/033 for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface since 1985 IPC+CPC Available in IPC and CPC