IPC Main Group
E21C 50/00 Obtaining minerals from underwater, not otherwise provided for
Introduced: January 1990
Last revised: January 2006
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- EARTH OR ROCK DRILLING; MINING
- Subclass:
- MINING OR QUARRYING
1 direct subcode
Child Classifications
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- E21C 50/02 dependent on the ship movements