DRIFTING CUTTER-LOADER OPERABLE IN HARD ROCK

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Bibliographic Details
Main Authors POLYAKOV N.S.,SU, GALYAS A.A.,SU, DOLGOPOLOV A.V.,SU, POLUYANSKIJ S.A.,SU, LARKINA L.P.,SU
Format Patent
LanguageEnglish
Published 25.10.1977
Subjects
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
MINING OR QUARRYING
SHAFTS
TUNNELS
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Bibliography:Application Number: SU19701397568