Technical pen | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-01-16

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Technical_pen


00:00:29 1 History
00:01:35 2 Fountain pen versions
00:02:44 3 Ink tubes
00:03:57 4 Brands
00:05:28 5 Technical information
00:09:30 6 Drawing tools
00:09:58 7 See also



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- Socrates


SUMMARY
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A technical pen is a specialized instrument used by an engineer, architect, or drafter to make lines of constant width for architectural, engineering, or technical drawings.  "Rapidograph" is a trademarked name for one type of technical pen. Technical pens use either a refillable ink reservoir (Isograph version) or a replaceable ink cartridge.