DIFF Subgroup
A21B 3/07 Charging or discharging ovens (A21B3/18 takes precedence)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Charging or discharging ovens
CPC: Charging or discharging ovens (A21B3/18 takes precedence)
Full Title
Full titles differ between systems:
IPC:
Parts or accessories of ovens > Charging or discharging ovens
CPC:
Parts or accessories of ovens > Charging or discharging ovens (A21B3/18 takes precedence)
No child classifications to compare. This is a leaf node in both IPC and CPC.