CPC Subgroup
A47J 27/212 with signaling means, e.g. whistling kettles
Full Title
Cooking-vessels (A47J29/00 - A47J33/00 take precedence) > Water-boiling vessels, e.g. kettles > with signaling means, e.g. whistling kettles
A47J 27/212 Cooking-vessels (A47J29/00 - A47J33/00 take precedence) > Water-boiling vessels, e.g. kettles > with signaling means, e.g. whistling kettles