SN

Shunsaku Nakauchi

KC Kokusai Gijutsu Kaihatsu Co.: 1 patents #1 of 2Top 50%
RY Ryobi: 1 patents #16 of 45Top 40%
Overall (1989): #15,921 of 140,708Top 15%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4854619 Electric key 1989-08-08
4798068 Electrically controlled type cylinder for locks 1989-01-17