Electro-acoustic time announcement, i.e. spoken

Introduced: September 1968

Last revised: January 2006

Full Title

Producing acoustic time signals by electrical means > Indicating the time of the day > by electro-acoustic means > Electro-acoustic time announcement, i.e. spoken

Classification Context

Section:: PHYSICS
Class:: HOROLOGY
Subclass:: ELECTROMECHANICAL CLOCKS OR WATCHES

Related Keywords

electro-acoustical TIME announcement