| | E | FIXED CONSTRUCTIONS |
| | | BUILDING |
| | E02 | HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING |
| | E02B | HYDRAULIC ENGINEERING (ship-lifting E02C; dredging E02F) |
| | | Subclass index | |
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METHODS AND EQUIPMENT IN GENERAL | 1/00, 3/00 | ARTIFICIAL WATER CANALS | 5/00 | BARRAGES OR WEIRS | 7/00, 8/00 | WATER-POWER PLANTS | 9/00 | DRAINAGE; IRRIGATION; CLEANING OF SURFACE OF OPEN WATER | 11/00, 13/00, 15/00 | ARTIFICIAL ISLANDS MOUNTED ON PILES OR LIKE SUPPORTS | 17/00 |
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| | E02C | SHIP-LIFTING DEVICES OR MECHANISMS |
| | E02D | FOUNDATIONS; EXCAVATIONS; EMBANKMENTS (specially adapted for hydraulic engineering E02B); UNDERGROUND OR UNDERWATER STRUCTURES [6] |
| | | Note(s) [6] - This subclass covers underground structures made by foundation engineering, i.e. involving disturbance of the ground surface.
- This subclass does not cover underground spaces, made by underground mining methods only, i.e. not involving disturbance of the ground surface, which are covered by subclass E21D.
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| | | Subclass index | |
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INVESTIGATING, IMPROVING OR PRESERVING FOUNDATION SOIL OR ROCK | 1/00, 3/00 | STRUCTURAL ELEMENTS AND TECHNIQUES THEREFOR | Structural elements | 5/00 | Placing; removing; placing and removing; accessories | 7/00, 9/00, 11/00, 13/00 | HANDLING MATERIALS | 15/00 | EXCAVATIONS, MAKING EMBANKMENTS | 17/00 | KEEPING DRY FOUNDATION SITES | 19/00 | CAISSONS | 23/00, 25/00 | FOUNDATIONS AS SUBSTRUCTURES; UNDERGROUND OR UNDERWATER STRUCTURES, RETAINING WALLS | 27/00, 29/00 | PROTECTING, TESTING, STRAIGHTENING, LIFTING, REPAIRING | 31/00-37/00 |
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| | E02F | |
| | | Note(s) - This subclass covers:
- primarily equipment for excavating or loosening earth or for moving loose earth;
- equipment for working similarly on other materials and similar equipment for loading or unloading materials.
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| | | Subclass index | |
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GENERAL WORKING METHODS | 1/00 | HAND-OPERATED MACHINES OR APPARATUS FOR GENERAL USE | 3/02 | MECHANICALLY-DRIVEN MACHINES OR APPARATUS FOR GENERAL USE OR THEIR SPECIAL DETAILS | 3/04 | MACHINES FOR SPECIAL PURPOSES OR THEIR SPECIAL DETAILS | 5/00 | EQUIPMENT FOR CONVEYING OR SEPARATING EXCAVATED MATERIAL | 7/00 | GENERAL DETAILS | 9/00 |
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