Clock and program systems
Esquema
Jerarquía
Object Groupings and Systems (Hierarchy Name) > systems (equipment) > <systems by function> > communication systems (mechanical and electrical systems)
Descripción
Systems that bring several clocks into conformity, and may ring bells or alarms at scheduled intervals.
URI original del concepto
Otros términos
- klok- en programmasystemen [nl]
- clock and program system [en]
- clock and program system [es]
- systems, clock and program [en]
- school clock and program systems [en]
- klok- en programmasysteem [nl]