DIFF Subgroup
B22D 27/13 making use of gas pressure
Introduced: January 1980
Full Title
Full titles differ between systems:
IPC:
Treating the metal in the mould while it is molten or ductile > by using pressure > making use of gas pressure
CPC:
Treating the metal in the mould while it is molten or ductile (B22D7/12, B22D11/10, B22D43/00 take precedence); > by using pressure > making use of gas pressure
No child classifications to compare. This is a leaf node in both IPC and CPC.