RH

Ryuzo Hirabayashi

ML M.I.T. Limited: 2 patents #6 of 28Top 25%
Overall (All Time): #2,313,783 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D320001 Musical instrument digital interface plug — 1991-09-17
D313790 Electrical plug — 1991-01-15