Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys (obtaining iron or steel C21B, C21C)

Introduced: July 1974

Title

Titles differ between systems:

IPC: Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys

CPC: Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys (obtaining iron or steel C21B, C21C)

Full Title

Full titles differ between systems:

IPC:

Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys

CPC:

Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys (obtaining iron or steel C21B, C21C)

Of 5 combined children, 4 exist in both systems.

1 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1974.

Child Classifications

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C22B 4/005 CPC only CPC only
C22B 4/02 Light metals since 1974 IPC+CPC Available in IPC and CPC
C22B 4/04 Heavy metals since 1974 IPC+CPC Available in IPC and CPC
C22B 4/06 Alloys since 1974 IPC+CPC Available in IPC and CPC
C22B 4/08 Apparatus ( electric heating elements H05B) since 1974 IPC+CPC Available in IPC and CPC