Ditto machine vs. mimeograph
Trademark.
[mim-ee-uh-graf, -grahf]
/ ˈmɪm i əˌgræf, -ˌgrɑf /
noun
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a printing machine with an ink-fed drum, around which a cut waxed stencil is placed and which rotates as successive sheets of paper are fed into it.
-
a copy made from a mimeograph.