Noun
(plural ruling pens)
- a pen used in graphic design and calligraphy for drawing precise lines of various thicknesses
ruling-pen
English Wiktionary. Available under CC-BY-SA license.
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"ruling-pen." YourDictionary, n.d. Web. 14 January 2019. <https://www.yourdictionary.com/ruling-pen>.
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ruling-pen. (n.d.). Retrieved January 14th, 2019, from https://www.yourdictionary.com/ruling-pen
