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with means for conveying samples through pipe to surface
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Industry
CPC
E21B49/084
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Parent Industries
E
FIXED CONSTRUCTIONS
E21
Mining
E21B
EARTH DRILLING
E21B49/00
Testing the nature of borehole walls Formation testing Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
Current Industry
E21B49/084
with means for conveying samples through pipe to surface
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