| 9850111 |
Device for supporting and guiding supplying lines for digging devices |
— |
2017-12-26 |
| 9151011 |
Drilling device for executing diaphragm walls and method thereof |
Stefano Trevisani, Maurizio Siepi, Carlo Crippa |
2015-10-06 |
| 8915056 |
Supporting and guiding device for feeding lines for digging tools |
— |
2014-12-23 |
| 8112911 |
Method and device for mixing earth in situ for the formation of underground walls or diaphragms |
— |
2012-02-14 |
| 6354026 |
Trench rig |
— |
2002-03-12 |
| 5645131 |
Device for joining threaded rods and tubular casing elements forming a string of a drilling rig |
— |
1997-07-08 |
| 5431238 |
Drilling tool for use in constructing large diameter piles, ventilating shafts and other similar mining works |
— |
1995-07-11 |
| 5382114 |
Tunnel excavation apparatus |
— |
1995-01-17 |
| 5375667 |
Stowing and handling system for rods used in drilling rigs |
— |
1994-12-27 |
| 5290125 |
Tunnel lining method and apparatus suitable for the purpose |
— |
1994-03-01 |
| 5173027 |
Automated parking system and subassemblies therefor |
— |
1992-12-22 |
| 5152638 |
Process and apparatus for excavating tunnels |
— |
1992-10-06 |
| 5112161 |
Method for excavating and constructing monolithic continuous straight or circular structural walls and a machine for realizing such a method |
— |
1992-05-12 |
| 5104260 |
Method and apparatus for tunnelling |
— |
1992-04-14 |
| 4848972 |
Process and apparatus for widening roadways |
— |
1989-07-18 |