MK

Masanori Kumazawa

AC Aiphone Co.: 2 patents #18 of 52Top 35%
Overall (All Time): #2,143,270 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D578993 Portable intercom with a TV monitor Manabu Yamada 2008-10-21
D561734 Interphone with a TV monitor Manabu Yamada 2008-02-12