METHOD OF PRODUCING CHROMO-LIGNINE-SULPHONANE AS THE STABILIZING AGENT OF DRILLING FLUID FOR VERY DEEP WELLS

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Hauptverfasser:	SLAMA,OLDRICH,CS, STANIK,VOJTECH,CS, ESTERKA,FRANTISEK,CS
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMISTRY DYES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES
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