Circuit Arrangements; Electric Clock Installations [g04c 13/02] Patents (Class 968/525)

Cross-Reference Art Collections

Master-slave systems using transmission of singular pulses for driving directly slave clocks step-by-step (subclass 533 takes precedence) [g04c 13/02b] (Class 968/526)

Via existing power distribution lines [G04C 13/02B2] (Class 968/527)
Via existing transmission lines (transmitting time signals over telephone networks H04M 11/06) [G04C 13/02B3] (Class 968/528)
Via special lines [G04C 13/02B4] (Class 968/529)
By radio [G04C 13/02B5] (Class 968/530)

Master-slave systems using transmission of other driving signals, e.g., coded signals, etc. [g04c 13/02f] (Class 968/531)

Transmission systems for synchronization of pendulum of slave clocks by pendulums of master clocks [g04c 13/02k] (Class 968/532)

Pulse transmission systems with additional means for setting the time indication of slave clocks (subclass 532 takes precedence) [g04c 13/03] (Class 968/533)

Master clocks [g04c 13/04] (Class 968/534)

Monitoring or controlling master clock or system with more than one master clock, e.g., for switching over to standby motor or power system, etc. [G04C 13/04B] (Class 968/535)
Provided with supplementary means for setting or changing the time indication of the slave clocks [G04C 13/04C] (Class 968/538)
Arrangements for generating normal driving pulses (generating timing pulses in general subclass 817) [G04C 13/04D] (Class 968/541)
Contact devices (for simultaneously winding several clocks subclass 426) [G04C 13/06] (Class 968/545)

There are no patents to show for this class.