for trepanning

Introduced: September 1968

Full Title

Tools for drilling machines > for trepanning

CPC subdivides this area 13x more granularly than IPC with 12 additional codes.

12 codes are CPC-only extensions.

IPC defines codes here since 1985.

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B23B 51/0411 CPC only CPC only
B23B 51/0413 CPC only CPC only
B23B 51/0417 CPC only CPC only
B23B 51/042 CPC only CPC only
B23B 51/0426 CPC only CPC only
B23B 51/044 CPC only CPC only
B23B 51/0453 CPC only CPC only
B23B 51/0461 CPC only CPC only
B23B 51/0466 CPC only CPC only
B23B 51/0467 +2 CPC CPC only CPC only
B23B 51/0473 CPC only CPC only
B23B 51/0486 +1 CPC CPC only CPC only
B23B 51/05 for cutting discs from sheet since 1985 IPC+CPC Available in IPC and CPC

Class B23,2013–2023, worldwide · Source: EPO PATSTAT

Class B23,2013–2023, worldwide · Source: EPO PATSTAT