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2. Stark's ink - Wikipedia

   en.wikipedia.org/wiki/Stark's_ink

   James Stark was a chemist during the 19th century who experimented with ink recipes for 23 years. He tested 229 recipes for their durability on various kinds of paper to find the most stable iron gall ink recipe. He submitted his findings in 1855 to the Society of Arts in Edinburgh, Scotland. [1] This recipe was the one he personally used.

3. Iron gall ink - Wikipedia

   en.wikipedia.org/wiki/Iron_gall_ink

   In India, the IS 220 (1988): Fountain Pen Ink – Ferro-gallo Tannate (0.1 percent iron content) Third Revision standard, which was reaffirmed in 2010, is in use. This Indian Standard was adopted by the Bureau of Indian Standards on 21 November 1988, after the draft finalized by the Inks and Allied Products Sectional Committee had been approved ...

4. Correction fluid - Wikipedia

   en.wikipedia.org/wiki/Correction_fluid

   One of the first forms of correction fluid was invented in 1956 by American secretary Bette Nesmith Graham, founder of Liquid Paper. [1] With the advent of colored paper stocks for office use, manufacturers began producing their fluids in various matching colors, particularly reds, blues and yellows. [not verified in body]

5. List of pen types, brands and companies - Wikipedia

   en.wikipedia.org/wiki/List_of_pen_types,_brands...

   A pen is a handheld device used to apply ink to a surface, usually paper, for writing or drawing. [1] Additional types of specialized pens are used in specific types of applications and environments such as in artwork, electronics, digital scanning and spaceflight, and computing.

6. Whiteboard - Wikipedia

   en.wikipedia.org/wiki/Whiteboard

   A combination between a whiteboard and a cork bulletin board Original early 1960s ad for "Plasti-slate", the first whiteboard/dry erase board invented by Martin Heit. It has been widely reported that Korean War veteran and photographer Martin Heit and Albert Stallion, an employee at Alliance, a leading flat rolled steel sheet supplier should be credited with the invention of the whiteboard in ...

7. Wet-wipe marker - Wikipedia

   en.wikipedia.org/wiki/Wet-wipe_marker

   Dry erase markers can usually be applied on top of the wet wipe marker, and erased without touching the wet wipe marks. Wet wipe markers were often used on overhead projector transparencies, as they could be stored and transported easily, unlike a traditional chalkboard.