electrograph

/ih-lek-truh-graf, -grahf/US // ɪˈlɛk trəˌgræf, -ˌgrɑf //UK // (ɪˈlɛktrəʊˌɡrɑːf, -ˌɡræf) //

电报,电报仪,电报机,电泳图

Definitions

n.名词 noun

1
- : a curve or plot automatically traced by the action of an electric device, as an electrometer or an electrically controlled pen.
- : Printing. an apparatus for engraving metal plates on cylinders used in printing.
- : Telecommunications. an apparatus for electrically transmitting pictures.a picture produced by such a device.

They were answering calls for electrograph and viewplate records on all sorts of subjects from all sections of the city.