QC

Qing Cai

3M: 1 patents #266 of 952Top 30%
📍 Shanghai, MN: #1 of 2 inventorsTop 50%
Overall (1994): #81,174 of 165,921Top 50%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5345355 Slack limiting tab for a magnetic tape cassette Vincent P. Teuber 1994-09-06