G04C21/04 - CPC Classification Index

ClassID:

179492 ⎘

G04C21/04 - CPC Classification

Classification description:

Producing acoustic time signals by electrical means Indicating the time of the day

Sub-classes:

G04C21/06 » by striking mechanism 2
G04C21/12 » by electro-acoustic means 7

Recent Application in this class:

20200293003

METHOD FOR CONTROLLING ALARM-CLOCK OF SMART MIRROR

20190176756

Watch with fob capabilities