DIFF Subgroup
B24B 15/04 on valve members
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Machines or devices designed for grinding seat surfaces; Accessories therefor > on valve members
CPC:
Machines or devices designed for grinding seat surfaces; Accessories therefor (for spherical surfaces in general B24B11/00) > on valve members
No child classifications to compare. This is a leaf node in both IPC and CPC.