DIFF Subgroup
B25H 7/02 Plates having a flat surface
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Marking-out or setting-out work > Plates having a flat surface
CPC:
Marking-out or setting-out work (measuring, gauging G01; optical apparatus G02B; by photographic means G03C) > Plates having a flat surface
No child classifications to compare. This is a leaf node in both IPC and CPC.