PL199183A1 - Sposob i urzadzenie do podnoszenia i przyspieszania spadku tarczy zamachowej przy zaglebianiu oraz wyciaganiu rury obsadowej z gruntu
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Sposob i urzadzenie do podnoszenia i przyspieszania spadku tarczy zamachowej przy zaglebianiu oraz wyciaganiu rury obsadowej z gruntu
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Application filed by Inst Badawczy Drog I MostowfiledCriticalInst Badawczy Drog I Mostow
Priority to PL19918377ApriorityCriticalpatent/PL115045B1/pl
Publication of PL199183A1publicationCriticalpatent/PL199183A1/pl
Publication of PL115045B1publicationCriticalpatent/PL115045B1/pl
PL19918377A1977-06-271977-06-27Method of and apparatus for lifting and speeding up dropping movement of a flydisc while driving in and pullingout the conductor casing into and from a soil respectively
PL115045B1
(en)
Method of and apparatus for lifting and speeding up dropping movement of a flydisc while driving in and pullingout the conductor casing into and from a soil respectively
Method of and apparatus for lifting and speeding up dropping movement of a flydisc while driving in and pullingout the conductor casing into and from a soil respectively
Method of and apparatus for lifting and speeding up dropping movement of a flydisc while driving in and pullingout the conductor casing into and from a soil respectively