HK

Hiroyasu Katoh

KK Katoh Kinzoku Kougyo Kabushiki Kaisha: 1 patents #2 of 2Top 100%
Overall (All Time): #3,999,009 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4601599 Ball-point pen — 1986-07-22