Yeong-Guang TZENG

Follow

Person

Taipei, TW

People

Patents Grantslast 30 patents

Information Patent Grant
Hoist device having selective power source
- Patent number 7,380,770
- Issue date Jun 3, 2008
- Tefua Mfg. Co., Ltd.
- Yeong-Guang Tzeng
- B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

Information Patent Application
HOIST DEVICE HAVING SELECTIVE POWER SOURCE
- Publication number 20080083911
- Publication date Apr 10, 2008
- Yeong-Guang TZENG
- B66 - HOISTING LIFTING HAULING