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Application filed by Zoltan Gyoergy, Laszlo FodorfiledCriticalZoltan Gyoergy
Priority to HU58090ApriorityCriticalpatent/HU212681B/hu
Publication of HU900580D0publicationCriticalpatent/HU900580D0/hu
Publication of HUT69105ApublicationCriticalpatent/HUT69105A/hu
Publication of HU212681BpublicationCriticalpatent/HU212681B/hu
HU58090A1990-01-301990-01-30Method for forming a drilled well and a drilled well with an enlarged bore-hole filled with granulous material
HU212681B
(en)