DG

Djing-San Goh

KR Koh-I-Noor Rapidograph: 1 patents #18 of 38Top 50%
Overall (All Time): #1,610,046 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6561379 Packaging box for tablets — 2003-05-13
4761090 Tubular writing pen tip with adjustment means — 1988-08-02
4662769 Tubular writing pen tip with adjustment means — 1987-05-05