YZ

Yunde Zhu

NC Ningbo Yunsheng Co.: 2 patents #1 of 14Top 8%
Overall (All Time): #1,277,716 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6300548 Music timer Wei Wang 2001-10-09
5936171 Flying block assembly for speed regulation of music box Wei Wang 1999-08-10
5886271 Power external output mechanism in music box Wei Wang 1999-03-23
5543577 Construction of music box Guohui Bai 1996-08-06