DIFF Subgroup
F27B 9/12 with special arrangements for preheating or cooling the charge
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity > with special arrangements for preheating or cooling the charge
CPC:
Furnaces through which the charge is moved mechanically, e.g. of tunnel type (rotary-drum furnaces with means for agitating or moving the charge F27B7/14); Similar furnaces in which the charge moves by gravity > with special arrangements for preheating or cooling the charge
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Note: 2 CPC extensions are marked as secondary classification only.
Child Classifications
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