BX

Baoshu Xi

Overall (All Time): #2,095,865 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8259969 High-frequency pneumatic loudspeaker for audio broadcasting — 2012-09-04
8036403 Directional sound wave radiator — 2011-10-11