|
US7926410B2
(en)
|
|
Hydraulic circuit for synchronized horizontal extension of cylinders
|
|
PL124198B1
(en)
|
|
Releasable check valve used in underground mining as either robbing or jacking valve
|
|
AU2004202506B2
(en)
|
|
Hydraulic shield support
|
|
CN101166904A
(zh)
|
|
具有压力补偿器的液压系统
|
|
KR20170110642A
(ko)
|
|
수술대
|
|
PL83636B1
(enrdf_load_stackoverflow)
|
|
|
|
PL52412B1
(enrdf_load_stackoverflow)
|
|
|
|
US4694730A
(en)
|
|
Prop control valve
|
|
PL96166B1
(pl)
|
|
Urzadzenie hydrauliczne do posuwania prowadnicy gorniczej maszyny urabiajacej zwlaszcza struga
|
|
US4264237A
(en)
|
|
Method for controlling a hydraulically operated mine roof support and an arrangement for carrying out the method
|
|
CZ65695A3
(en)
|
|
Support prop for use in mines
|
|
PL80728B1
(enrdf_load_stackoverflow)
|
|
|
|
US3541926A
(en)
|
|
Control system for a stepping hydraulic roof propping system
|
|
WO2009024136A2
(de)
|
|
Ausbaugestell für den strebausbau in bergwerken
|
|
PL71636B3
(enrdf_load_stackoverflow)
|
|
|
|
EP0344252B1
(en)
|
|
Device for displacing a first part relative to a second part
|
|
PL207470B1
(pl)
|
|
Blok zaworowy, zwłaszcza do stojaków obudów górniczych
|
|
SU730970A1
(ru)
|
|
Гидросистема управлени механизированной крепью
|
|
PL67465B1
(enrdf_load_stackoverflow)
|
|
|
|
SU375386A1
(enrdf_load_stackoverflow)
|
|
|
|
PL46883B1
(enrdf_load_stackoverflow)
|
|
|
|
PL63725B1
(enrdf_load_stackoverflow)
|
|
|
|
SU1548459A1
(ru)
|
|
Шахтна гидравлическа крепь
|
|
PL51438B3
(enrdf_load_stackoverflow)
|
|
|
|
PL138654B1
(en)
|
|
Hydraulic system of mine lining
|