B23B2251/42 - CPC Classification Index

ClassID:

41168 ⎘

B23B2251/42 - CPC Classification

Classification description:

Sub-classes:

B23B2251/422 » Deep hole drills, e.g. ejector drills 37
B23B2251/426 » Micro-drills 30
B23B2251/428 » Drills for cutting plugs of material 51

Recent Application in this class:

20220126378

Illuminated tool bit assembly

20150202696

Systems and methods for forming an opening in a stack