Matti P. Mannonen

Follow

Person

Helsinki, FI

People

Patents Grantslast 30 patents

Information Patent Grant
Component for the construction of ground-bearing stairways and ramp...
- Patent number 5,479,746
- Issue date Jan 2, 1996
- Trioplan Oy
- Matti P. Mannonen
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING