| IPC 7 English version |
| Class E02 |
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| SECTION E – FIXED CONSTRUCTIONS |
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| E 02 | HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING |
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| E 02 B | HYDRAULIC ENGINEERING (ship-lifting E02C; dredging E02F) |
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| E 02 C | SHIP-LIFTING DEVICES OR MECHANISMS |
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| E 02 D | FOUNDATIONS; EXCAVATIONS; EMBANKMENTS (specially adapted for hydraulic engineering E02B); UNDERGROUND OR UNDERWATER STRUCTURES [6] |
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| E 02 F | DREDGING; SOIL-SHIFTING (winning peat E21C 49/00) |
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