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BIC Grip 4 Color Ball Pens with 3 Color + Pencil Set, 10 ct | Costco
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Amazon.com : BIC Ecolutions Round Stic Ballpoint Pens, Medium Point (1.0mm), 50-Count Pack, Blue Ink Pens Made from 97% Recycled Plastic : Office Products
WO2010052729A1 - Ink composition and a ball point pen comprising the same - Google Patents
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Amazon.com: BIC 4-Color 3+1 Ballpoint Pen and Pencil, Pen Medium Point (1.0 mm), Pencil 0.7mm Lead, Assorted Ink Colors, 1-Count : Beauty & Personal Care