Isamu Yoshizawa

Follow

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Driving apparatus for vertical rolling mill
- Patent number 4,831,858
- Issue date May 23, 1989
- FEC Co., Ltd.
- Isamu Yoshizawa
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...