ClassID:

179125

G04B21/00 - CPC Classification

Classification description:

Indicating the time by acoustic means

Sub-classes:
Recent Application in this class:
#1
20260072407
2026-03-12

WATCH CASE FOR A WRISTWATCH WITH A MUSICAL OR RINGING MECHANISM HAVING A BOTTOM WITH A COVER

#2
20190187627
2019-06-20

Chronograph repeater mechanism with safety function

#3
20190187621
2019-06-20

Chronograph repeater mechanism with safety function

#4
20190179266
2019-06-13

Acoustic timepiece display mechanism, particularly a chronograph repeater

#5
20170102672
2017-04-13

Mechanical wristwatch bracelet with which an electronic function is associated

#6
20170082977
2017-03-23

Timepiece pallet fork for mechanical oscillator and timepiece time-delay release mechanism

#7
20160255732
2016-09-01

Electronic device

#8
20160109857
2016-04-21

Timepiece with improved sound level

#9
20160109856
2016-04-21

Acoustic radiating membrane arrangement for a striking watch

#10
20160098013
2016-04-07

Musical watch case with improved acoustic performance

#11
20150338828
2015-11-26

Melody selection mechanism for a striking timepiece

#12
20150338827
2015-11-26

Timepiece pallet fork for mechanical oscillator and timepiece time-delay release mechanism

#13
20150187346
2015-07-02

Whistle device that can be integrated into a wristwatch

#14
20140355398
2014-12-04

Striking mechanism provided with a means of selecting the mode of vibration of a gong

#15
20140104994
2014-04-17

Gong for striking-work device of a timepiece

#16
20130279305
2013-10-24

Sealing device for a minute-repeater

#17
20130250735
2013-09-26

Information notifying device and electronic timepiece

#18
20130077452
2013-03-28

Indicator of the power reserve of a timepiece

#19
20120230156
2012-09-13

Mechanism for isolating timepiece mechanisms which release various acoustic signals

#20
20060133217
2006-06-22

Instrument for measuring intervals of time comprising a ringing mechanism