G04C11/00 - CPC Classification Index

ClassID:

179416 ⎘

G04C11/00 - CPC Classification

Classification description:

Electric clock installations; Master-and-slave clock systems; Synchronous-motor clocks

Sub-classes:

G04C11/002 » {by changing the driving speed} 1
G04C11/005 » {by changing the ratio of the driving-gear} 0
G04C11/007 » {by positioning of the index or by regulating the length of the pendulum in dependance on the time difference with a standard} 2
G04C11/02 » by radio 26
G04C11/04 » over a line 4
G04C11/06 » with direct mechanical action on the time-indicating means 1
G04C11/08 » using an electro-magnet or-motor {for oscillation correction} 2

Recent Application in this class:

20200326660

2020-10-15

METHOD AND APPARATUS FOR UNIVERSAL TIME SIMULATION AND CO-ORDINATION FOR GENERATING FREQUENT ORIGIN MILESTONE

20190187625

2019-06-20

Timepiece comprising a mechanical oscillator associated with a regulation system

20190187624

2019-06-20

Timepiece comprising a mechanical oscillator associated with a regulation system

20180356855

2018-12-13

Clocking device, electronic apparatus, and vehicle

20170235279

2017-08-17

METHOD AND APPARATUS FOR SYNCHRONIZING CLOCKS UNDERWATER USING LIGHT AND SOUND

20160313707

2016-10-27

METHOD AND APPARATUS FOR ADJUSTMENT OF ANALOG MOVEMENT HANDS OF TIMEPIECE

20150260030

2015-09-17

Method and system for tracking time in a downhole tool without the need for a battery

20150188695

2015-07-02

Method and apparatus for synchronizing clocks underwater using light and sound

20120263195

2012-10-18

Time synchronization method, device and system

#10

20120188079

2012-07-26

NIGHT LIGHT WAKE UP INDICATOR

#11

20100220553

2010-09-02

Method and apparatus for alerting a person at medicine dosing times

#12

20100134284

2010-06-03

Night light wake up indicator

#13

20090079561

2009-03-26

Night light wake up indicator

#14

20070291592

2007-12-20

Street clock