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  • Spiral ballpoint ink cartridge lasts twice as long

    By Ben on Wed Apr 20 2011
    Spiral ballpoint ink cartridge lasts twice as

    Spiral ballpoint ink cartridge lasts twice as
    Gear  |  Design
    Here's a clever idea to make your ballpoint pen last much longer. Desigend by Han Chi-hoon, Kim Yeon-soo, Park Byong-gon & Kim Sung-geun. The T&T Pen-ink Chamber has been entered for an iF concept design award.
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