| Patent No. | Patent Title: |
| 4440522 | Hydraulic control arrangement for a roof support unit of a minera... |
| 4433942 | Wharf fender |
| 4432670 | Combination connector and flex joint for underwater tension eleme... |
| 4427321 | Mineral mining installation |
| 4425054 | Marine platform adapted to facilitate the detection of possible c... |
| 4420278 | Heading shield |
| 4413931 | Method for treating subterranean formations |
| 4413924 | Blocks for constructing a breakwater |
| 4412760 | Method for producing a structure having cohesion by means of a ma... |
| 4412758 | Hydraulic control means |
| 4411559 | Mining system |
| 4405261 | Subsea template levelling system and method |
| 4401397 | Method and device for installing a shaft lining in shafts through... |
| 4400108 | Mobile reinforced concrete pipe machine |
| 4398850 | Roof bolter and process |
| 4398846 | Subsea riser manifold with structural spanning member for support... |
| 4397582 | Method of creating a cold water conduit to be used in ocean therm... |
| 4390307 | Pile-driving apparatus |
| 4389140 | Locking device for a pile-shaped element |
| 4388021 | Method of and device for making canalization by advancing under p... |
| 4386872 | Dredge environ protection assembly |
| 4384808 | Under-water cable burying device |
| 4379659 | Building blocks |
| 4378178 | Offshore platform system and method |
| 4371289 | Underground rock chutes |
| 4371292 | Gravity structure |
| 4371290 | Shuttering for establishing concrete lining of tunnels |
| 4370079 | Apparatus for encasing excavations |
| 4367981 | Fluid pressure-tensioned slip joint for drilling riser |
| 4365911 | Surface drainage culvert |
| 4363570 | Upper end mounting for deep water thermal conduit |
| 4362440 | Tubular lost borehole closure |
| 4362433 | Flood disaster control bag |
| 4358220 | Functionally transformable dam |
| 4355926 | Adjustable support for underwater pipe a short distance from the ... |
| 4356087 | Rodent barrier device |
| 4355925 | Adjustable support for underwater pipe distant from the sea bed |
| 4352598 | Concrete structure for the transmission of loads from the steel l... |
| 4352595 | Apparatus for and method of supporting pipe suspended over depres... |
| 4349296 | Irrigation ditch gate |
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