Thesaurus: copygraph

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1. n. A contrivance for producing manifold copies of a writing or drawing.
2. A contrivance for producing manifold copies of a writing or drawing. Note: The writing or drawing is made with aniline ink on paper, and a reverse copy transferred by pressure to a slab of gelatin softened with glycerin. A large number of transcripts can be taken while the ink is fresh. Various names have been given to the process [the gelatin copying process], some of them acceptable and others absurd; hectograph, polygraph, copygraph, lithogram, etc. Knight.
3. A contrivance for producing manifold copies of a writing ordrawing.
4. n. A contrivance for producing manifold copies of a writing or drawing.