Tshiab Utility Patent (4)

2019224997833- Daim Ntawv Pov Thawj Daim Ntawv Pov Thawj Patent (ceev)

Tshiab Utility Patent (3)

Utility model Patent Certificate (kos npe)

Tshiab Utility Patent (2)

2019224859941- Tus qauv siv hluav taws xob Patent Certificate (seal)

Tshiab Utility Patent (1)

201922474821X- Tus Qauv Siv Hluav Taws Xob Patent Certificate (ceev)