Linings or supports specially shaped for tunnels or galleries of irregular cross-section

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Patents Grantslast 30 patents

Information Patent Grant
Panel system for rockburst or landslide containment in mining tunne...
- Patent number 11,866,900
- Issue date Jan 9, 2024
- Garibaldi S.A.
- José Alberto Rojas Ubilla
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
3447328
- Patent number 3,447,328
- Issue date Jun 3, 1969
- E21 - EARTH DRILLING MINING