DIFF Subgroup
B22D 41/18 Stopper-rods therefor
Introduced: January 1990
Full Title
Full titles differ between systems:
IPC:
Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like > Closures > stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening > Stopper-rods therefor
CPC:
Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like (B22D39/00, B22D43/00 take precedence) > Closures > stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening > Stopper-rods therefor
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Child Classifications
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