DIFF Subgroup
B21H 7/14 knurled articles
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Making articles not provided for in groups , e.g. agricultural tools, dinner forks, knives, spoons > knurled articles
CPC:
Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons (nails, pins B21G3/30) > knurled articles
No child classifications to compare. This is a leaf node in both IPC and CPC.