Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AT136071Aexternal-prioritypatent/AT321976B/de
Application filed by Banyaterv Banyaszati Tervezo IfiledCriticalBanyaterv Banyaszati Tervezo I
Priority to AT22074ApriorityCriticalpatent/AT337761B/de
Publication of ATA22074ApublicationCriticalpatent/ATA22074A/de
Application grantedgrantedCritical
Publication of AT337761BpublicationCriticalpatent/AT337761B/de
AT22074A1970-03-071974-01-11Verfahren und vorrichtung zur herstellung von unterirdischen hohlraumen, z.b. tunneln, kanalen, schachten u.dgl.
AT337761B
(de)