JH

Jun Hirakawa

PE Pentax: 1 patents #12 of 57Top 25%
Overall (1989): #91,771 of 140,708Top 70%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4836663 Telephoto zoom lens system — 1989-06-06