Chin-Yi Lee

Follow

Person

Taoyuan Hsien, TW

People

Patents Grantslast 30 patents

Information Patent Grant
Bedrock drilling and excavating apparatus
- Patent number 7,090,038
- Issue date Aug 15, 2006
- Chuan Home Machinery Co., Ltd.
- Chin-Yi Lee
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
AIR PRESSURE REUSED PNEUMATIC HAMMER DRILL
- Publication number 20130118769
- Publication date May 16, 2013
- Chin-Yi LEE
- E21 - EARTH DRILLING MINING
Information Patent Application
Bedrock drilling and excavating apparatus
- Publication number 20050241859
- Publication date Nov 3, 2005
- Chin-Yi Lee
- E21 - EARTH DRILLING MINING