DIFF Main Group
B22D 39/00 Equipment for supplying molten metal in rations
Introduced: September 1968
Of 4 combined children, 3 exist in both systems.
1 codes are CPC-only extensions.
IPC defines codes here since 1980.
Child Classifications
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- B22D 39/02 having means for controlling the amount of molten metal by volume since 1980 +2 CPC IPC+CPC Available in IPC and CPC
- B22D 39/04 having means for controlling the amount of molten metal by weight since 1980 IPC+CPC Available in IPC and CPC
- B22D 39/06 having means for controlling the amount of molten metal by controlling the pressure above the molten metal since 1980 IPC+CPC Available in IPC and CPC