DEVICE FOR SEALING AWAY A FLEXIBLE ELEMENT AT WELL HEAD
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| creator | EFIMOV EVGENIJ N,SU KAMAEV VIKTOR ,SU |
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| language | eng |
| recordid | cdi_epo_espacenet_SU578431A1 |
| source | esp@cenet |
| subjects | EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS |
| title | DEVICE FOR SEALING AWAY A FLEXIBLE ELEMENT AT WELL HEAD |
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