復寫器
Papyrograph \Pa*pyr"o*graph\, n. [Papyrus + -graph.] An apparatus for multiplying writings, drawings, etc., in which a paper stencil, formed by writing or drawing with corrosive ink, is used. The word is also used of other means of multiplying copies of writings, drawings, etc. See {Copygraph}, {Hectograph}, {Manifold}.