Chongqing Tongjian Optical Technology Co., LTD
Grantee Code: 2BTQR
2BTQR-G004
Dec 24, 2025AI smart audio glasses
Equipment Class
DTS - Digital Transmission SystemApplication Purpose
Original Equipment
Company Information
- Grantee Code
- 2BTQR
- FRN Number
- 37760006
- City
- Fengjie County, Chongqing City
- Country
- China
- Total Applications
- 1