MH

Masahiro Hyakawa

PE Pentax: 1 patents #515 of 761Top 70%
Overall (All Time): #3,893,068 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5077567 Water-sealed camera Keisuke Haraguchi 1991-12-31