DIFF Subgroup
F27B 5/04 adapted for treating the charge in vacuum or special atmosphere
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated > adapted for treating the charge in vacuum or special atmosphere
CPC:
Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated (furnaces through which the charge is moved mechanically or in which the charge moves by gravity F27B9/00) > adapted for treating the charge in vacuum or special atmosphere
Of 1 combined children, 0 exist in both systems.
1 codes exist only in IPC.
IPC defines codes here since 1990.
Child Classifications
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