PL337477A1 - Method of and apparatus for jointing together and regenerating casing pipes used in deep geological exploration and mining bore-holes
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Method of and apparatus for jointing together and regenerating casing pipes used in deep geological exploration and mining bore-holes
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Application filed by Janusz Krala, Tomasz KralafiledCriticalJanusz Krala
Priority to PL99337477ApriorityCriticalpatent/PL189931B1/en
Publication of PL337477A1publicationCriticalpatent/PL337477A1/en
Publication of PL189931B1publicationCriticalpatent/PL189931B1/en
PL99337477A1999-12-271999-12-27Method of and apparatus for jointing together and regenerating casing pipes used in deep geological exploration and mining bore-holes
PL189931B1
(en)