DIFF Subgroup
E21D 1/02 by hand
Introduced: September 1968
Full Title
Sinking shafts > by hand
No child classifications to compare. This is a leaf node in both IPC and CPC.
E21D 1/02 Introduced: September 1968
Sinking shafts > by hand
No child classifications to compare. This is a leaf node in both IPC and CPC.