Chisel-type inserts ( E21B10/52 take precedence)

Introduced: January 1980

Title

Titles differ between systems:

IPC: Chisel-type inserts

CPC: Chisel-type inserts ( E21B10/52 take precedence)

Full Title

Full titles differ between systems:

IPC:

Drill bits > characterised by wear resisting parts, e.g. diamond inserts > Chisel-type inserts

CPC:

Drill bits (specially adapted for deflecting the direction of boring ; with means for collecting substances E21B27/00) > characterised by wear resisting parts, e.g. diamond inserts > Chisel-type inserts ( E21B10/52 take precedence)

No child classifications to compare. This is a leaf node in both IPC and CPC.