SO

Shigeo Oka

PK Pentel Kabushiki Kaisha: 3 patents #1 of 11Top 10%
Overall (2004): #20,576 of 270,089Top 8%
3
Patents 2004

Issued Patents 2004

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
D499139 Ball point pen 2004-11-30
D492722 Marking pen 2004-07-06
D490105 Ball point pen 2004-05-18