Ling-Ling Yu

Follow

Person

Taoyuan City, TW

People

Patents Grantslast 30 patents

Information Patent Grant
Multiple gearing switch device
- Patent number 6,939,262
- Issue date Sep 6, 2005
- Ling-Ling Yu
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
MULTIPLE GEARING SWITCH DEVICE
- Publication number 20050192149
- Publication date Sep 1, 2005
- Ling-Ling Yu
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS