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| Number | Title | Issue Date |
| 8074382 | Device for guiding bundles of parallel ropes, cables, or pipes according to a three-dimensional path in an earth-digging machine A device for guiding bundles of parallel ropes, cables, or pipes according to a three-dimensional (or non-planar) path in an earth-digging machine of the type in which provided downstream of the winder assembly (9) for the ropes are at least two sets (5, 7... | 12/13/2011 |
| 6591904 | Equipment for stowing and handling drill pipes Equipment (1) for stowing and handling drill pipes (2), the equipment being provided with a device for transporting the drill pipes (2) from a service well (9) to a rack container (11); the transport device being defined by a central control tower (23) lo... | 07/15/2003 |
| 6536541 | Boring unit for pile foundations Boring unit for pile foundations presenting a tracked vehicle facing the mouth of a hole, a mast (5) which is supported by the tracked vehicle, a rotary table (6) which is slidingly mounted along the mast (5), and at least one excavation element (7) which... | 03/25/2003 |
| 6113334 | Manoeuvre equipment for rods used in drilling plants Description of a manoeuvre equipment for rods (20) used in drilling plants, operating between an equipment for rod stowage (22, 23), where lines of rods are stowed vertically, and a service well (24) from which each single rod (20) can be taken out, and i... | 09/05/2000 |
| 6102116 | Locking device to load and to screw a drill stem and casing tubes for drill rigs A locking device has a lower concave housing suitable to receive and hold an upper end of an element to be attached to a drill stem. The housing forms a conical surface. A number of blocks slides along the conical surface. Each block has an outside slidin... | 08/15/2000 |
| 5645131 | Device for joining threaded rods and tubular casing elements forming a string of a drilling rig A device for joining an element to a string of elements already mounted, including threaded rods and tubular casing elements covering the walls of a borehole, for use in drilling equipment including a rotary head driving said string with a combined moveme... | 07/08/1997 |
| 5173027 | Automated parking system and subassemblies therefor An underground circular and non circular parking place where vehicle parking areas are obtained and arranged radius-like on several underground stories. Vehicles are fed to the areas by a lift truck which moves vertically from ground story to the lower st... | 12/22/1992 |
