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Priority to PL19933177ApriorityCriticalpatent/PL199331A1/en
Publication of PL199331A1publicationCriticalpatent/PL199331A1/en
PL19933177A1977-07-011977-07-01
METHOD OF FOUNDATION AND CONSTRUCTION OF A SET OF TWO SINGLE-DRUM PULLING MACHINES FOR SHAFT SOILING CONDITIONS
PL199331A1
(en)