NT

Noriaki Tsunoda

ML Mitsubishi Pencil Company, Limited: 1 patents #181 of 302Top 60%
📍 Kanna, JP: #19 of 30 inventorsTop 65%
Overall (All Time): #3,944,179 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4889442 Writing instrument with ink quantity of level detecting function Hiroshi Takagi, Toshiaki Serikawa 1989-12-26