CPC Main Group A21B 1/00 Bakers' ovens 5 direct subcodes Child Classifications Navigate with arrow keys, Enter to open A21B 1/02 characterised by the heating arrangements A21B 1/40 characterised by the means for regulating the temperature A21B 1/42 characterised by the baking surfaces moving during the baking A21B 1/50 characterised by having removable baking surfaces A21B 1/52 Portable ovens; Collapsible ovens