Shinkichi Ohoka

Follow

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Stabilizer for excavated surface
- Patent number 4,403,891
- Issue date Sep 13, 1983
- Toa Grout Kogyo Co., Ltd.
- Shinkichi Ohoka
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING