MO

Masahiko Okura

Overall (1989): #20,527 of 140,708Top 15%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4858059 Short-circuit device of a gas-filled triple-pole discharge-tube type arrester for telephone line use — 1989-08-15
4811636 Ratchet device adaptable to various screw-rotating tools — 1989-03-14