名詞
A machine used in gravure printing
A recording electrometer; also, the graph produced by such a device.
An instrument for the reproduction at a distance of pictures, maps, etc., by means of electricity.
用法- 歴史用語
A sciagraph.
用法- 歴史用語
A cinematograph using the arclight.
用法- 歴史用語
名詞
an apparatus for the electrical transmission of pictures
electrical device used for etching by electrolytic means