Roneograph vs mimeograph machine

Roneograph and mimeograph machine both are nouns.

Word	Noun	Adjective	Verb	Adverb
Roneograph	Yes	No	No	No
mimeograph machine	Yes	No	No	No

As nouns, Roneograph and mimeograph machine are synonyms defined as:

Roneograph and mimeograph machine: a rotary duplicator that uses a stencil through which ink is pressed (trade mark Roneo)

Other synonyms of Roneograph include mimeo, mimeograph, Roneo.

Roneograph (noun)	mimeograph machine (noun)
a rotary duplicator that uses a stencil through which ink is pressed (trade mark Roneo)	a rotary duplicator that uses a stencil through which ink is pressed (trade mark Roneo)