Kainen Watanabe

Follow

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Insulating plate for rail insulated joint
- Patent number 4,630,772
- Issue date Dec 23, 1986
- Matsushita Electric Industrial Co., Ltd.
- Kainen Watanabe
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES