MT

Muneo Tohkoku

SI Seiko Instruments: 1 patents #836 of 1,437Top 60%
Overall (All Time): #3,703,398 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5838641 Mechanical timepiece with tourbillon mechanism Tsuyoshi Tanaka 1998-11-17