Beum Jae Lee

Follow

Person

Ulsan, KR

People

Patents Grantslast 30 patents

Information Patent Grant
Leadless free-cutting copper alloy and method for producing the same
- Patent number 9,840,758
- Issue date Dec 12, 2017
- POONGSAN CORPORATION
- Beum Jae Lee
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
LEADLESS FREE-CUTTING COPPER ALLOY AND METHOD FOR PRODUCING THE SAME
- Publication number 20140248175
- Publication date Sep 4, 2014
- POONGSAN CORPORATION
- Beum Jae Lee
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...