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en.wikipedia.org/wiki/Mechanical_pencil

A mechanical pencil (US English) or a propelling pencil (UK English) is a pencil with a replaceable and mechanically extendable solid pigment core called a " lead" /ˈlɛd/. The lead, often made of graphite, is not bonded to the outer casing, and can be mechanically extended as its point is worn away. Other names include ...

www.merriam-webster.com/dictionary/mechanical%20pencil

Define mechanical pencil: a pencil made of metal or plastic with a lead that is moved forward by a mechanical device.

www.scribd.com/doc/84035584/The-Mechanical-Pencil

Technical Description of the Mechanical Pencil. 1. GENERAL DESCRIPTION The Mechanical Pencil is a mechanical writing instrument that uses erasable lead rods to draw or write text, designs, and symbols on mediums such as paper and wood. The Mechanical Pencil is most commonly used for drawing pictures and ...

www.osha.gov/pls/imis/sic_manual.display?id=881&tab=description

Establishments primarily engaged in manufacturing pens (including ballpoint pens), refill cartridges, mechanical pencils, fine and broad tipped markers, and parts. Cartridges, refill: for ballpoint pens; Fountain pens and fountain pen desk sets; Markers, soft tip: e.g., felt, fabric, plastics; Meter pens; Nibs (pen points): gold , steel ...

www.cultpens.com/pencyclopedia/guide-to-mechanical-pencils

Graphite was first used in lumps, with perhaps a bit of cloth wrapped around to hold it. When things started to progress towards the pencil, the first attempts involved wooden holders to grip sticks of graphite, so they could be used more easily and cleanly. The first description of a leadholder was by Conrad Gessner, back in ...

thewirecutter.com/reviews/best-mechanical-pencils

Mar 24, 2016 ... Although we haven't yet tested any new pencils in 2016, we've gone through this guide and made some minor changes to keep our descriptions of the Uni-ball Kuru Toga and its competitors up to date. We still think that the Kuru Toga is the best mechanical pencil for most people. Show less. Your guide.

www.referenceforbusiness.com/industries/Miscellaneous-Manufacturing/Pens-Mechanical-Pencils-Parts.html

This industry contains establishments primarily engaged in manufacturing pens ( including ballpoint pens), refill cartridges, mechanical pencils, fine and broad tipped markers, and parts.

www.census.gov/prod/ec97/97m3399h.pdf

NAICS Codes, Titles, and Descriptions. 339941 PEN AND MECHANICAL PENCIL. MANUFACTURING. This U.S. industry comprises establishments primarily engaged in manufacturing pens, ballpoint pen refills and cartridges, mechanical pencils, and felt tipped markers. The data published with NAICS code 339941 ...

pilotpen.us/categories/recycled-pens/progrex-mechanical-pencil