Keiichi Oinuma

Follow

Person

Oyama-shi, JP

People

Patents Applicationslast 30 patents

Information Patent Application
DEVICE AND METHOD FOR DRAWING METAL TUBE
- Publication number 20150174631
- Publication date Jun 25, 2015
- Showa Denko K.K.
- Hidekazu Sakihama
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...