DIFF Subgroup
C22B 4/08 Apparatus ( electric heating elements H05B)
Introduced: July 1974
Title
Titles differ between systems:
IPC: Apparatus
CPC: Apparatus ( electric heating elements H05B)
Full Title
Full titles differ between systems:
IPC:
Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys > Apparatus
CPC:
Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys (obtaining iron or steel C21B, C21C) > Apparatus ( electric heating elements H05B)
No child classifications to compare. This is a leaf node in both IPC and CPC.