Chang Ho Ra

Follow

Person

Buchon-City, KR

People

Patents Applicationslast 30 patents

Information Patent Application
Ceramic powder emitting far infrared ray, high-density bio-stone ma...
- Publication number 20060266979
- Publication date Nov 30, 2006
- BANSEOK ZEROPA CO., LTD.
- Chang Ho Ra
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Application
Telecommunication apparatus having electromagnetic wave absorbing d...
- Publication number 20010053464
- Publication date Dec 20, 2001
- Chang Ho Ra
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES